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Finding the Fourth Proportional to 766,805.72, 1,058,177.72 and 417,949.13

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Solution

The fourth proportional to 766,805.72, 1,058,177.72 and 417,949.13 is: 576,762.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,805.72 : 1,058,177.72 = 417,949.13 : x
  2. Step 2: Convert to fraction form
    766,805.72/1,058,177.72 = 417,949.13/x
  3. Step 3: Cross multiply
    766,805.72x = 1,058,177.72 × 417,949.13
  4. Step 4: Simplify right side
    766,805.72x = 442,264,461,149.70
  5. Step 5: Solve for x
    x = 442,264,461,149.70/766,805.72
  6. Step 6: Final answer
    x = 576,762.08

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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.