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Finding the Fourth Proportional to 487,268.30, 730,902.45 and 443,722.70

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Solution

The fourth proportional to 487,268.30, 730,902.45 and 443,722.70 is: 665,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,268.30 : 730,902.45 = 443,722.70 : x
  2. Step 2: Convert to fraction form
    487,268.30/730,902.45 = 443,722.70/x
  3. Step 3: Cross multiply
    487,268.30x = 730,902.45 × 443,722.70
  4. Step 4: Simplify right side
    487,268.30x = 324,318,008,550.62
  5. Step 5: Solve for x
    x = 324,318,008,550.62/487,268.30
  6. Step 6: Final answer
    x = 665,584.05

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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.