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Finding the Fourth Proportional to 534,411.20, 800,061.60 and 323,940.80

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Solution

The fourth proportional to 534,411.20, 800,061.60 and 323,940.80 is: 484,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,411.20 : 800,061.60 = 323,940.80 : x
  2. Step 2: Convert to fraction form
    534,411.20/800,061.60 = 323,940.80/x
  3. Step 3: Cross multiply
    534,411.20x = 800,061.60 × 323,940.80
  4. Step 4: Simplify right side
    534,411.20x = 259,172,594,753.28
  5. Step 5: Solve for x
    x = 259,172,594,753.28/534,411.20
  6. Step 6: Final answer
    x = 484,968.49

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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.