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Finding the Fourth Proportional to 598,312.20, 897,468.30 and 430,350.60

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Solution

The fourth proportional to 598,312.20, 897,468.30 and 430,350.60 is: 645,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,312.20 : 897,468.30 = 430,350.60 : x
  2. Step 2: Convert to fraction form
    598,312.20/897,468.30 = 430,350.60/x
  3. Step 3: Cross multiply
    598,312.20x = 897,468.30 × 430,350.60
  4. Step 4: Simplify right side
    598,312.20x = 386,226,021,385.98
  5. Step 5: Solve for x
    x = 386,226,021,385.98/598,312.20
  6. Step 6: Final answer
    x = 645,525.90

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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.