Home / 752,917.32-1,129,209.90-220,479.86

Finding the Fourth Proportional to 752,917.32, 1,129,209.90 and 220,479.86

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Solution

The fourth proportional to 752,917.32, 1,129,209.90 and 220,479.86 is: 330,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,917.32 : 1,129,209.90 = 220,479.86 : x
  2. Step 2: Convert to fraction form
    752,917.32/1,129,209.90 = 220,479.86/x
  3. Step 3: Cross multiply
    752,917.32x = 1,129,209.90 × 220,479.86
  4. Step 4: Simplify right side
    752,917.32x = 248,968,040,662.61
  5. Step 5: Solve for x
    x = 248,968,040,662.61/752,917.32
  6. Step 6: Final answer
    x = 330,671.16

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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.