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Finding the Fourth Proportional to 499,154.52, 688,384.86 and 329,559.96

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Solution

The fourth proportional to 499,154.52, 688,384.86 and 329,559.96 is: 454,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,154.52 : 688,384.86 = 329,559.96 : x
  2. Step 2: Convert to fraction form
    499,154.52/688,384.86 = 329,559.96/x
  3. Step 3: Cross multiply
    499,154.52x = 688,384.86 × 329,559.96
  4. Step 4: Simplify right side
    499,154.52x = 226,864,086,926.21
  5. Step 5: Solve for x
    x = 226,864,086,926.21/499,154.52
  6. Step 6: Final answer
    x = 454,496.71

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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.