Home / 491,084.28-677,689.38-276,224.28

Finding the Fourth Proportional to 491,084.28, 677,689.38 and 276,224.28

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Solution

The fourth proportional to 491,084.28, 677,689.38 and 276,224.28 is: 381,185.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,084.28 : 677,689.38 = 276,224.28 : x
  2. Step 2: Convert to fraction form
    491,084.28/677,689.38 = 276,224.28/x
  3. Step 3: Cross multiply
    491,084.28x = 677,689.38 × 276,224.28
  4. Step 4: Simplify right side
    491,084.28x = 187,194,261,054.15
  5. Step 5: Solve for x
    x = 187,194,261,054.15/491,084.28
  6. Step 6: Final answer
    x = 381,185.61

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Double scale
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1.5x scale

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.