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Finding the Fourth Proportional to 410,414.40, 615,621.60 and 252,950.40

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Solution

The fourth proportional to 410,414.40, 615,621.60 and 252,950.40 is: 379,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,414.40 : 615,621.60 = 252,950.40 : x
  2. Step 2: Convert to fraction form
    410,414.40/615,621.60 = 252,950.40/x
  3. Step 3: Cross multiply
    410,414.40x = 615,621.60 × 252,950.40
  4. Step 4: Simplify right side
    410,414.40x = 155,721,729,968.64
  5. Step 5: Solve for x
    x = 155,721,729,968.64/410,414.40
  6. Step 6: Final answer
    x = 379,425.60

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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.