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Finding the Fourth Proportional to 723,687.91, 998,035.59 and 451,780.93

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Solution

The fourth proportional to 723,687.91, 998,035.59 and 451,780.93 is: 623,049.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,687.91 : 998,035.59 = 451,780.93 : x
  2. Step 2: Convert to fraction form
    723,687.91/998,035.59 = 451,780.93/x
  3. Step 3: Cross multiply
    723,687.91x = 998,035.59 × 451,780.93
  4. Step 4: Simplify right side
    723,687.91x = 450,893,447,023.30
  5. Step 5: Solve for x
    x = 450,893,447,023.30/723,687.91
  6. Step 6: Final answer
    x = 623,049.58

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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.