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Finding the Fourth Proportional to 615,901.20, 923,851.80 and 363,958.80

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Solution

The fourth proportional to 615,901.20, 923,851.80 and 363,958.80 is: 545,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,901.20 : 923,851.80 = 363,958.80 : x
  2. Step 2: Convert to fraction form
    615,901.20/923,851.80 = 363,958.80/x
  3. Step 3: Cross multiply
    615,901.20x = 923,851.80 × 363,958.80
  4. Step 4: Simplify right side
    615,901.20x = 336,243,992,505.84
  5. Step 5: Solve for x
    x = 336,243,992,505.84/615,901.20
  6. Step 6: Final answer
    x = 545,938.20

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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.