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Finding the Fourth Proportional to 568,200.80, 852,301.20 and 318,850.40

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Solution

The fourth proportional to 568,200.80, 852,301.20 and 318,850.40 is: 478,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,200.80 : 852,301.20 = 318,850.40 : x
  2. Step 2: Convert to fraction form
    568,200.80/852,301.20 = 318,850.40/x
  3. Step 3: Cross multiply
    568,200.80x = 852,301.20 × 318,850.40
  4. Step 4: Simplify right side
    568,200.80x = 271,756,578,540.48
  5. Step 5: Solve for x
    x = 271,756,578,540.48/568,200.80
  6. Step 6: Final answer
    x = 478,275.60

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Similar ratio
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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.