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Finding the Fourth Proportional to 598,267.20, 897,400.80 and 430,305.60

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Solution

The fourth proportional to 598,267.20, 897,400.80 and 430,305.60 is: 645,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,267.20 : 897,400.80 = 430,305.60 : x
  2. Step 2: Convert to fraction form
    598,267.20/897,400.80 = 430,305.60/x
  3. Step 3: Cross multiply
    598,267.20x = 897,400.80 × 430,305.60
  4. Step 4: Simplify right side
    598,267.20x = 386,156,589,684.48
  5. Step 5: Solve for x
    x = 386,156,589,684.48/598,267.20
  6. Step 6: Final answer
    x = 645,458.40

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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.