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Finding the Fourth Proportional to 519,080.80, 778,839.90 and 282,593.20

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Solution

The fourth proportional to 519,080.80, 778,839.90 and 282,593.20 is: 424,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,080.80 : 778,839.90 = 282,593.20 : x
  2. Step 2: Convert to fraction form
    519,080.80/778,839.90 = 282,593.20/x
  3. Step 3: Cross multiply
    519,080.80x = 778,839.90 × 282,593.20
  4. Step 4: Simplify right side
    519,080.80x = 220,094,859,628.68
  5. Step 5: Solve for x
    x = 220,094,859,628.68/519,080.80
  6. Step 6: Final answer
    x = 424,008.86

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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.