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Finding the Fourth Proportional to 491,429.48, 736,652.75 and 207,188.73

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Solution

The fourth proportional to 491,429.48, 736,652.75 and 207,188.73 is: 310,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,429.48 : 736,652.75 = 207,188.73 : x
  2. Step 2: Convert to fraction form
    491,429.48/736,652.75 = 207,188.73/x
  3. Step 3: Cross multiply
    491,429.48x = 736,652.75 × 207,188.73
  4. Step 4: Simplify right side
    491,429.48x = 152,626,146,687.56
  5. Step 5: Solve for x
    x = 152,626,146,687.56/491,429.48
  6. Step 6: Final answer
    x = 310,575.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.