Home / 749,346.40-1,124,019.60-434,418.40

Finding the Fourth Proportional to 749,346.40, 1,124,019.60 and 434,418.40

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Solution

The fourth proportional to 749,346.40, 1,124,019.60 and 434,418.40 is: 651,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,346.40 : 1,124,019.60 = 434,418.40 : x
  2. Step 2: Convert to fraction form
    749,346.40/1,124,019.60 = 434,418.40/x
  3. Step 3: Cross multiply
    749,346.40x = 1,124,019.60 × 434,418.40
  4. Step 4: Simplify right side
    749,346.40x = 488,294,796,200.64
  5. Step 5: Solve for x
    x = 488,294,796,200.64/749,346.40
  6. Step 6: Final answer
    x = 651,627.60

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Double scale
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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.