Home / 812,374.92-1,218,031.01-767,766.60

Finding the Fourth Proportional to 812,374.92, 1,218,031.01 and 767,766.60

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Solution

The fourth proportional to 812,374.92, 1,218,031.01 and 767,766.60 is: 1,151,147.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,374.92 : 1,218,031.01 = 767,766.60 : x
  2. Step 2: Convert to fraction form
    812,374.92/1,218,031.01 = 767,766.60/x
  3. Step 3: Cross multiply
    812,374.92x = 1,218,031.01 × 767,766.60
  4. Step 4: Simplify right side
    812,374.92x = 935,163,527,242.27
  5. Step 5: Solve for x
    x = 935,163,527,242.27/812,374.92
  6. Step 6: Final answer
    x = 1,151,147.71

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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.