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Finding the Fourth Proportional to 888,299.60, 1,330,481.10 and 355,546.40

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Solution

The fourth proportional to 888,299.60, 1,330,481.10 and 355,546.40 is: 532,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,299.60 : 1,330,481.10 = 355,546.40 : x
  2. Step 2: Convert to fraction form
    888,299.60/1,330,481.10 = 355,546.40/x
  3. Step 3: Cross multiply
    888,299.60x = 1,330,481.10 × 355,546.40
  4. Step 4: Simplify right side
    888,299.60x = 473,047,765,373.04
  5. Step 5: Solve for x
    x = 473,047,765,373.04/888,299.60
  6. Step 6: Final answer
    x = 532,531.78

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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.