Home / 738,127.40-1,107,191.10-472,188.20

Finding the Fourth Proportional to 738,127.40, 1,107,191.10 and 472,188.20

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Solution

The fourth proportional to 738,127.40, 1,107,191.10 and 472,188.20 is: 708,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,127.40 : 1,107,191.10 = 472,188.20 : x
  2. Step 2: Convert to fraction form
    738,127.40/1,107,191.10 = 472,188.20/x
  3. Step 3: Cross multiply
    738,127.40x = 1,107,191.10 × 472,188.20
  4. Step 4: Simplify right side
    738,127.40x = 522,802,572,565.02
  5. Step 5: Solve for x
    x = 522,802,572,565.02/738,127.40
  6. Step 6: Final answer
    x = 708,282.30

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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.