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Finding the Fourth Proportional to 615,388.60, 923,082.90 and 283,612.60

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Solution

The fourth proportional to 615,388.60, 923,082.90 and 283,612.60 is: 425,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,388.60 : 923,082.90 = 283,612.60 : x
  2. Step 2: Convert to fraction form
    615,388.60/923,082.90 = 283,612.60/x
  3. Step 3: Cross multiply
    615,388.60x = 923,082.90 × 283,612.60
  4. Step 4: Simplify right side
    615,388.60x = 261,797,941,284.54
  5. Step 5: Solve for x
    x = 261,797,941,284.54/615,388.60
  6. Step 6: Final answer
    x = 425,418.90

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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.