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Finding the Fourth Proportional to 662,693.20, 994,331.40 and 307,524.40

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Solution

The fourth proportional to 662,693.20, 994,331.40 and 307,524.40 is: 461,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,693.20 : 994,331.40 = 307,524.40 : x
  2. Step 2: Convert to fraction form
    662,693.20/994,331.40 = 307,524.40/x
  3. Step 3: Cross multiply
    662,693.20x = 994,331.40 × 307,524.40
  4. Step 4: Simplify right side
    662,693.20x = 305,781,167,186.16
  5. Step 5: Solve for x
    x = 305,781,167,186.16/662,693.20
  6. Step 6: Final answer
    x = 461,421.92

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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.