Home / 480,380.46-662,976.42-276,440.28

Finding the Fourth Proportional to 480,380.46, 662,976.42 and 276,440.28

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Solution

The fourth proportional to 480,380.46, 662,976.42 and 276,440.28 is: 381,517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,380.46 : 662,976.42 = 276,440.28 : x
  2. Step 2: Convert to fraction form
    480,380.46/662,976.42 = 276,440.28/x
  3. Step 3: Cross multiply
    480,380.46x = 662,976.42 × 276,440.28
  4. Step 4: Simplify right side
    480,380.46x = 183,273,387,178.20
  5. Step 5: Solve for x
    x = 183,273,387,178.20/480,380.46
  6. Step 6: Final answer
    x = 381,517.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.