Home / 1,375,905.60-2,063,761.20-477,129.60

Finding the Fourth Proportional to 1,375,905.60, 2,063,761.20 and 477,129.60

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Solution

The fourth proportional to 1,375,905.60, 2,063,761.20 and 477,129.60 is: 715,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,905.60 : 2,063,761.20 = 477,129.60 : x
  2. Step 2: Convert to fraction form
    1,375,905.60/2,063,761.20 = 477,129.60/x
  3. Step 3: Cross multiply
    1,375,905.60x = 2,063,761.20 × 477,129.60
  4. Step 4: Simplify right side
    1,375,905.60x = 984,681,555,851.52
  5. Step 5: Solve for x
    x = 984,681,555,851.52/1,375,905.60
  6. Step 6: Final answer
    x = 715,660.69

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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.