Home / 658,162.20-908,354.04-378,753.65

Finding the Fourth Proportional to 658,162.20, 908,354.04 and 378,753.65

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Solution

The fourth proportional to 658,162.20, 908,354.04 and 378,753.65 is: 522,731.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,162.20 : 908,354.04 = 378,753.65 : x
  2. Step 2: Convert to fraction form
    658,162.20/908,354.04 = 378,753.65/x
  3. Step 3: Cross multiply
    658,162.20x = 908,354.04 × 378,753.65
  4. Step 4: Simplify right side
    658,162.20x = 344,042,403,600.48
  5. Step 5: Solve for x
    x = 344,042,403,600.48/658,162.20
  6. Step 6: Final answer
    x = 522,731.94

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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.