Home / 480,627.30-720,981.96-125,640.75

Finding the Fourth Proportional to 480,627.30, 720,981.96 and 125,640.75

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Solution

The fourth proportional to 480,627.30, 720,981.96 and 125,640.75 is: 188,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,627.30 : 720,981.96 = 125,640.75 : x
  2. Step 2: Convert to fraction form
    480,627.30/720,981.96 = 125,640.75/x
  3. Step 3: Cross multiply
    480,627.30x = 720,981.96 × 125,640.75
  4. Step 4: Simplify right side
    480,627.30x = 90,584,713,719.72
  5. Step 5: Solve for x
    x = 90,584,713,719.72/480,627.30
  6. Step 6: Final answer
    x = 188,471.84

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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.