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Finding the Fourth Proportional to 502,425.20, 693,248.28 and 298,538.48

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Solution

The fourth proportional to 502,425.20, 693,248.28 and 298,538.48 is: 411,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,425.20 : 693,248.28 = 298,538.48 : x
  2. Step 2: Convert to fraction form
    502,425.20/693,248.28 = 298,538.48/x
  3. Step 3: Cross multiply
    502,425.20x = 693,248.28 × 298,538.48
  4. Step 4: Simplify right side
    502,425.20x = 206,961,287,773.81
  5. Step 5: Solve for x
    x = 206,961,287,773.81/502,425.20
  6. Step 6: Final answer
    x = 411,924.58

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1.5x scale

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.