Home / 480,650.15-720,912.65-125,691.55

Finding the Fourth Proportional to 480,650.15, 720,912.65 and 125,691.55

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Solution

The fourth proportional to 480,650.15, 720,912.65 and 125,691.55 is: 188,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,650.15 : 720,912.65 = 125,691.55 : x
  2. Step 2: Convert to fraction form
    480,650.15/720,912.65 = 125,691.55/x
  3. Step 3: Cross multiply
    480,650.15x = 720,912.65 × 125,691.55
  4. Step 4: Simplify right side
    480,650.15x = 90,612,628,393.11
  5. Step 5: Solve for x
    x = 90,612,628,393.11/480,650.15
  6. Step 6: Final answer
    x = 188,520.96

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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.