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Finding the Fourth Proportional to 398,177.20, 597,265.80 and 367,764.40

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Solution

The fourth proportional to 398,177.20, 597,265.80 and 367,764.40 is: 551,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,177.20 : 597,265.80 = 367,764.40 : x
  2. Step 2: Convert to fraction form
    398,177.20/597,265.80 = 367,764.40/x
  3. Step 3: Cross multiply
    398,177.20x = 597,265.80 × 367,764.40
  4. Step 4: Simplify right side
    398,177.20x = 219,653,098,577.52
  5. Step 5: Solve for x
    x = 219,653,098,577.52/398,177.20
  6. Step 6: Final answer
    x = 551,646.60

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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.