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Finding the Fourth Proportional to 488,689.20, 733,839.92 and 329,786

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Solution

The fourth proportional to 488,689.20, 733,839.92 and 329,786 is: 495,223.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,689.20 : 733,839.92 = 329,786 : x
  2. Step 2: Convert to fraction form
    488,689.20/733,839.92 = 329,786/x
  3. Step 3: Cross multiply
    488,689.20x = 733,839.92 × 329,786
  4. Step 4: Simplify right side
    488,689.20x = 242,010,131,857.12
  5. Step 5: Solve for x
    x = 242,010,131,857.12/488,689.20
  6. Step 6: Final answer
    x = 495,223.00

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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.