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Finding the Fourth Proportional to 489,080.10, 733,620.15 and 329,647.80

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Solution

The fourth proportional to 489,080.10, 733,620.15 and 329,647.80 is: 494,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,080.10 : 733,620.15 = 329,647.80 : x
  2. Step 2: Convert to fraction form
    489,080.10/733,620.15 = 329,647.80/x
  3. Step 3: Cross multiply
    489,080.10x = 733,620.15 × 329,647.80
  4. Step 4: Simplify right side
    489,080.10x = 241,836,268,483.17
  5. Step 5: Solve for x
    x = 241,836,268,483.17/489,080.10
  6. Step 6: Final answer
    x = 494,471.70

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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.