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Finding the Fourth Proportional to 637,542, 879,807.96 and 351,061.47

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Solution

The fourth proportional to 637,542, 879,807.96 and 351,061.47 is: 484,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,542 : 879,807.96 = 351,061.47 : x
  2. Step 2: Convert to fraction form
    637,542/879,807.96 = 351,061.47/x
  3. Step 3: Cross multiply
    637,542x = 879,807.96 × 351,061.47
  4. Step 4: Simplify right side
    637,542x = 308,866,675,755.30
  5. Step 5: Solve for x
    x = 308,866,675,755.30/637,542
  6. Step 6: Final answer
    x = 484,464.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.