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Finding the Fourth Proportional to 629,578.57, 944,646.70 and 329,987.92

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Solution

The fourth proportional to 629,578.57, 944,646.70 and 329,987.92 is: 495,128.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,578.57 : 944,646.70 = 329,987.92 : x
  2. Step 2: Convert to fraction form
    629,578.57/944,646.70 = 329,987.92/x
  3. Step 3: Cross multiply
    629,578.57x = 944,646.70 × 329,987.92
  4. Step 4: Simplify right side
    629,578.57x = 311,721,996,481.28
  5. Step 5: Solve for x
    x = 311,721,996,481.28/629,578.57
  6. Step 6: Final answer
    x = 495,128.03

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1.5x scale

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.