Home / 447,265.20-670,897.80-398,276.40

Finding the Fourth Proportional to 447,265.20, 670,897.80 and 398,276.40

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Solution

The fourth proportional to 447,265.20, 670,897.80 and 398,276.40 is: 597,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,265.20 : 670,897.80 = 398,276.40 : x
  2. Step 2: Convert to fraction form
    447,265.20/670,897.80 = 398,276.40/x
  3. Step 3: Cross multiply
    447,265.20x = 670,897.80 × 398,276.40
  4. Step 4: Simplify right side
    447,265.20x = 267,202,760,551.92
  5. Step 5: Solve for x
    x = 267,202,760,551.92/447,265.20
  6. Step 6: Final answer
    x = 597,414.60

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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.