Home / 765,601.17-1,148,103.67-316,394.61

Finding the Fourth Proportional to 765,601.17, 1,148,103.67 and 316,394.61

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Solution

The fourth proportional to 765,601.17, 1,148,103.67 and 316,394.61 is: 474,468.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,601.17 : 1,148,103.67 = 316,394.61 : x
  2. Step 2: Convert to fraction form
    765,601.17/1,148,103.67 = 316,394.61/x
  3. Step 3: Cross multiply
    765,601.17x = 1,148,103.67 × 316,394.61
  4. Step 4: Simplify right side
    765,601.17x = 363,253,812,909.22
  5. Step 5: Solve for x
    x = 363,253,812,909.22/765,601.17
  6. Step 6: Final answer
    x = 474,468.73

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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.