Home / 749,343.40-1,124,015.10-434,415.40

Finding the Fourth Proportional to 749,343.40, 1,124,015.10 and 434,415.40

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Solution

The fourth proportional to 749,343.40, 1,124,015.10 and 434,415.40 is: 651,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,343.40 : 1,124,015.10 = 434,415.40 : x
  2. Step 2: Convert to fraction form
    749,343.40/1,124,015.10 = 434,415.40/x
  3. Step 3: Cross multiply
    749,343.40x = 1,124,015.10 × 434,415.40
  4. Step 4: Simplify right side
    749,343.40x = 488,289,469,272.54
  5. Step 5: Solve for x
    x = 488,289,469,272.54/749,343.40
  6. Step 6: Final answer
    x = 651,623.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 749,344.40, 1,124,016.60 and 434,416.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.