Home / 728,469.60-1,092,704.40-445,034.40

Finding the Fourth Proportional to 728,469.60, 1,092,704.40 and 445,034.40

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Solution

The fourth proportional to 728,469.60, 1,092,704.40 and 445,034.40 is: 667,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,469.60 : 1,092,704.40 = 445,034.40 : x
  2. Step 2: Convert to fraction form
    728,469.60/1,092,704.40 = 445,034.40/x
  3. Step 3: Cross multiply
    728,469.60x = 1,092,704.40 × 445,034.40
  4. Step 4: Simplify right side
    728,469.60x = 486,291,047,031.36
  5. Step 5: Solve for x
    x = 486,291,047,031.36/728,469.60
  6. Step 6: Final answer
    x = 667,551.60

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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.