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Finding the Fourth Proportional to 637,892.42, 880,287.45 and 351,405.86

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Solution

The fourth proportional to 637,892.42, 880,287.45 and 351,405.86 is: 484,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,892.42 : 880,287.45 = 351,405.86 : x
  2. Step 2: Convert to fraction form
    637,892.42/880,287.45 = 351,405.86/x
  3. Step 3: Cross multiply
    637,892.42x = 880,287.45 × 351,405.86
  4. Step 4: Simplify right side
    637,892.42x = 309,338,168,414.46
  5. Step 5: Solve for x
    x = 309,338,168,414.46/637,892.42
  6. Step 6: Final answer
    x = 484,937.83

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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.