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Finding the Fourth Proportional to 498,365.46, 687,743.46 and 272,010.96

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Solution

The fourth proportional to 498,365.46, 687,743.46 and 272,010.96 is: 375,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,365.46 : 687,743.46 = 272,010.96 : x
  2. Step 2: Convert to fraction form
    498,365.46/687,743.46 = 272,010.96/x
  3. Step 3: Cross multiply
    498,365.46x = 687,743.46 × 272,010.96
  4. Step 4: Simplify right side
    498,365.46x = 187,073,758,788.32
  5. Step 5: Solve for x
    x = 187,073,758,788.32/498,365.46
  6. Step 6: Final answer
    x = 375,374.65

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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.