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Finding the Fourth Proportional to 534,451.20, 800,121.60 and 472,243.20

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Solution

The fourth proportional to 534,451.20, 800,121.60 and 472,243.20 is: 706,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,451.20 : 800,121.60 = 472,243.20 : x
  2. Step 2: Convert to fraction form
    534,451.20/800,121.60 = 472,243.20/x
  3. Step 3: Cross multiply
    534,451.20x = 800,121.60 × 472,243.20
  4. Step 4: Simplify right side
    534,451.20x = 377,851,984,773.12
  5. Step 5: Solve for x
    x = 377,851,984,773.12/534,451.20
  6. Step 6: Final answer
    x = 706,990.62

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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.