Home / 439,712.60-659,568.90-107,288.60

Finding the Fourth Proportional to 439,712.60, 659,568.90 and 107,288.60

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Solution

The fourth proportional to 439,712.60, 659,568.90 and 107,288.60 is: 160,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,712.60 : 659,568.90 = 107,288.60 : x
  2. Step 2: Convert to fraction form
    439,712.60/659,568.90 = 107,288.60/x
  3. Step 3: Cross multiply
    439,712.60x = 659,568.90 × 107,288.60
  4. Step 4: Simplify right side
    439,712.60x = 70,764,223,884.54
  5. Step 5: Solve for x
    x = 70,764,223,884.54/439,712.60
  6. Step 6: Final answer
    x = 160,932.90

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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.