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Finding the Fourth Proportional to 550,435.20, 825,652.80 and 363,446.70

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Solution

The fourth proportional to 550,435.20, 825,652.80 and 363,446.70 is: 545,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,435.20 : 825,652.80 = 363,446.70 : x
  2. Step 2: Convert to fraction form
    550,435.20/825,652.80 = 363,446.70/x
  3. Step 3: Cross multiply
    550,435.20x = 825,652.80 × 363,446.70
  4. Step 4: Simplify right side
    550,435.20x = 300,080,785,505.76
  5. Step 5: Solve for x
    x = 300,080,785,505.76/550,435.20
  6. Step 6: Final answer
    x = 545,170.05

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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.