Home / 812,001.92-1,217,449.29-411,871.13

Finding the Fourth Proportional to 812,001.92, 1,217,449.29 and 411,871.13

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Solution

The fourth proportional to 812,001.92, 1,217,449.29 and 411,871.13 is: 617,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,001.92 : 1,217,449.29 = 411,871.13 : x
  2. Step 2: Convert to fraction form
    812,001.92/1,217,449.29 = 411,871.13/x
  3. Step 3: Cross multiply
    812,001.92x = 1,217,449.29 × 411,871.13
  4. Step 4: Simplify right side
    812,001.92x = 501,432,221,660.86
  5. Step 5: Solve for x
    x = 501,432,221,660.86/812,001.92
  6. Step 6: Final answer
    x = 617,525.91

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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.