Home / 731,799.40-1,098,390.30-451,863.40

Finding the Fourth Proportional to 731,799.40, 1,098,390.30 and 451,863.40

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Solution

The fourth proportional to 731,799.40, 1,098,390.30 and 451,863.40 is: 678,221.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,799.40 : 1,098,390.30 = 451,863.40 : x
  2. Step 2: Convert to fraction form
    731,799.40/1,098,390.30 = 451,863.40/x
  3. Step 3: Cross multiply
    731,799.40x = 1,098,390.30 × 451,863.40
  4. Step 4: Simplify right side
    731,799.40x = 496,322,375,485.02
  5. Step 5: Solve for x
    x = 496,322,375,485.02/731,799.40
  6. Step 6: Final answer
    x = 678,221.89

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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.