Home / 994,320.80-1,491,481.20-329,386.40

Finding the Fourth Proportional to 994,320.80, 1,491,481.20 and 329,386.40

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Solution

The fourth proportional to 994,320.80, 1,491,481.20 and 329,386.40 is: 494,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,320.80 : 1,491,481.20 = 329,386.40 : x
  2. Step 2: Convert to fraction form
    994,320.80/1,491,481.20 = 329,386.40/x
  3. Step 3: Cross multiply
    994,320.80x = 1,491,481.20 × 329,386.40
  4. Step 4: Simplify right side
    994,320.80x = 491,273,623,135.68
  5. Step 5: Solve for x
    x = 491,273,623,135.68/994,320.80
  6. Step 6: Final answer
    x = 494,079.60

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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.