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Finding the Fourth Proportional to 572,006.10, 858,009.15 and 478,694.10

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Solution

The fourth proportional to 572,006.10, 858,009.15 and 478,694.10 is: 718,041.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,006.10 : 858,009.15 = 478,694.10 : x
  2. Step 2: Convert to fraction form
    572,006.10/858,009.15 = 478,694.10/x
  3. Step 3: Cross multiply
    572,006.10x = 858,009.15 × 478,694.10
  4. Step 4: Simplify right side
    572,006.10x = 410,723,917,851.02
  5. Step 5: Solve for x
    x = 410,723,917,851.02/572,006.10
  6. Step 6: Final answer
    x = 718,041.15

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Similar ratio
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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.