Home / 497,842.20-687,063.06-283,049.64

Finding the Fourth Proportional to 497,842.20, 687,063.06 and 283,049.64

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Solution

The fourth proportional to 497,842.20, 687,063.06 and 283,049.64 is: 390,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,842.20 : 687,063.06 = 283,049.64 : x
  2. Step 2: Convert to fraction form
    497,842.20/687,063.06 = 283,049.64/x
  3. Step 3: Cross multiply
    497,842.20x = 687,063.06 × 283,049.64
  4. Step 4: Simplify right side
    497,842.20x = 194,472,951,790.30
  5. Step 5: Solve for x
    x = 194,472,951,790.30/497,842.20
  6. Step 6: Final answer
    x = 390,631.71

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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.