Home / 1,240,516.38-1,861,148.16-387,553.62

Finding the Fourth Proportional to 1,240,516.38, 1,861,148.16 and 387,553.62

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Solution

The fourth proportional to 1,240,516.38, 1,861,148.16 and 387,553.62 is: 581,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,516.38 : 1,861,148.16 = 387,553.62 : x
  2. Step 2: Convert to fraction form
    1,240,516.38/1,861,148.16 = 387,553.62/x
  3. Step 3: Cross multiply
    1,240,516.38x = 1,861,148.16 × 387,553.62
  4. Step 4: Simplify right side
    1,240,516.38x = 721,294,706,764.34
  5. Step 5: Solve for x
    x = 721,294,706,764.34/1,240,516.38
  6. Step 6: Final answer
    x = 581,447.14

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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.