Home / 749,342.40-1,124,013.60-216,880.80

Finding the Fourth Proportional to 749,342.40, 1,124,013.60 and 216,880.80

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Solution

The fourth proportional to 749,342.40, 1,124,013.60 and 216,880.80 is: 325,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,342.40 : 1,124,013.60 = 216,880.80 : x
  2. Step 2: Convert to fraction form
    749,342.40/1,124,013.60 = 216,880.80/x
  3. Step 3: Cross multiply
    749,342.40x = 1,124,013.60 × 216,880.80
  4. Step 4: Simplify right side
    749,342.40x = 243,776,968,778.88
  5. Step 5: Solve for x
    x = 243,776,968,778.88/749,342.40
  6. Step 6: Final answer
    x = 325,321.20

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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.