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Finding the Fourth Proportional to 570,761.87, 787,649.42 and 329,043.29

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Solution

The fourth proportional to 570,761.87, 787,649.42 and 329,043.29 is: 454,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,761.87 : 787,649.42 = 329,043.29 : x
  2. Step 2: Convert to fraction form
    570,761.87/787,649.42 = 329,043.29/x
  3. Step 3: Cross multiply
    570,761.87x = 787,649.42 × 329,043.29
  4. Step 4: Simplify right side
    570,761.87x = 259,170,754,878.18
  5. Step 5: Solve for x
    x = 259,170,754,878.18/570,761.87
  6. Step 6: Final answer
    x = 454,078.61

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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.