Home / 819,793.85-1,131,404.15-497,517.53

Finding the Fourth Proportional to 819,793.85, 1,131,404.15 and 497,517.53

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Solution

The fourth proportional to 819,793.85, 1,131,404.15 and 497,517.53 is: 686,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,793.85 : 1,131,404.15 = 497,517.53 : x
  2. Step 2: Convert to fraction form
    819,793.85/1,131,404.15 = 497,517.53/x
  3. Step 3: Cross multiply
    819,793.85x = 1,131,404.15 × 497,517.53
  4. Step 4: Simplify right side
    819,793.85x = 562,893,393,726.52
  5. Step 5: Solve for x
    x = 562,893,393,726.52/819,793.85
  6. Step 6: Final answer
    x = 686,627.98

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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.