Home / 765,029.88-1,055,148.12-493,142.04

Finding the Fourth Proportional to 765,029.88, 1,055,148.12 and 493,142.04

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Solution

The fourth proportional to 765,029.88, 1,055,148.12 and 493,142.04 is: 680,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,029.88 : 1,055,148.12 = 493,142.04 : x
  2. Step 2: Convert to fraction form
    765,029.88/1,055,148.12 = 493,142.04/x
  3. Step 3: Cross multiply
    765,029.88x = 1,055,148.12 × 493,142.04
  4. Step 4: Simplify right side
    765,029.88x = 520,337,896,398.97
  5. Step 5: Solve for x
    x = 520,337,896,398.97/765,029.88
  6. Step 6: Final answer
    x = 680,153.69

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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.