Home / 495,649.20-683,997.60-280,829.04

Finding the Fourth Proportional to 495,649.20, 683,997.60 and 280,829.04

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Solution

The fourth proportional to 495,649.20, 683,997.60 and 280,829.04 is: 387,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,649.20 : 683,997.60 = 280,829.04 : x
  2. Step 2: Convert to fraction form
    495,649.20/683,997.60 = 280,829.04/x
  3. Step 3: Cross multiply
    495,649.20x = 683,997.60 × 280,829.04
  4. Step 4: Simplify right side
    495,649.20x = 192,086,389,370.30
  5. Step 5: Solve for x
    x = 192,086,389,370.30/495,649.20
  6. Step 6: Final answer
    x = 387,545.04

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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.