Home / 865,876.10-1,195,229.99-521,731.13

Finding the Fourth Proportional to 865,876.10, 1,195,229.99 and 521,731.13

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Solution

The fourth proportional to 865,876.10, 1,195,229.99 and 521,731.13 is: 720,182.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,876.10 : 1,195,229.99 = 521,731.13 : x
  2. Step 2: Convert to fraction form
    865,876.10/1,195,229.99 = 521,731.13/x
  3. Step 3: Cross multiply
    865,876.10x = 1,195,229.99 × 521,731.13
  4. Step 4: Simplify right side
    865,876.10x = 623,588,688,620.77
  5. Step 5: Solve for x
    x = 623,588,688,620.77/865,876.10
  6. Step 6: Final answer
    x = 720,182.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.