Home / 812,557.92-1,218,499.92-307,031.52

Finding the Fourth Proportional to 812,557.92, 1,218,499.92 and 307,031.52

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Solution

The fourth proportional to 812,557.92, 1,218,499.92 and 307,031.52 is: 460,419.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,557.92 : 1,218,499.92 = 307,031.52 : x
  2. Step 2: Convert to fraction form
    812,557.92/1,218,499.92 = 307,031.52/x
  3. Step 3: Cross multiply
    812,557.92x = 1,218,499.92 × 307,031.52
  4. Step 4: Simplify right side
    812,557.92x = 374,117,882,557.48
  5. Step 5: Solve for x
    x = 374,117,882,557.48/812,557.92
  6. Step 6: Final answer
    x = 460,419.96

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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.