Home / 439,744.60-659,616.90-107,320.60

Finding the Fourth Proportional to 439,744.60, 659,616.90 and 107,320.60

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Solution

The fourth proportional to 439,744.60, 659,616.90 and 107,320.60 is: 160,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,744.60 : 659,616.90 = 107,320.60 : x
  2. Step 2: Convert to fraction form
    439,744.60/659,616.90 = 107,320.60/x
  3. Step 3: Cross multiply
    439,744.60x = 659,616.90 × 107,320.60
  4. Step 4: Simplify right side
    439,744.60x = 70,790,481,478.14
  5. Step 5: Solve for x
    x = 70,790,481,478.14/439,744.60
  6. Step 6: Final answer
    x = 160,980.90

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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.