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Finding the Fourth Proportional to 410,080.40, 615,120.60 and 392,365.70

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Solution

The fourth proportional to 410,080.40, 615,120.60 and 392,365.70 is: 588,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,080.40 : 615,120.60 = 392,365.70 : x
  2. Step 2: Convert to fraction form
    410,080.40/615,120.60 = 392,365.70/x
  3. Step 3: Cross multiply
    410,080.40x = 615,120.60 × 392,365.70
  4. Step 4: Simplify right side
    410,080.40x = 241,352,224,803.42
  5. Step 5: Solve for x
    x = 241,352,224,803.42/410,080.40
  6. Step 6: Final answer
    x = 588,548.55

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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.