Home / 825,382.46-1,238,350.65-319,959.92

Finding the Fourth Proportional to 825,382.46, 1,238,350.65 and 319,959.92

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Solution

The fourth proportional to 825,382.46, 1,238,350.65 and 319,959.92 is: 480,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,382.46 : 1,238,350.65 = 319,959.92 : x
  2. Step 2: Convert to fraction form
    825,382.46/1,238,350.65 = 319,959.92/x
  3. Step 3: Cross multiply
    825,382.46x = 1,238,350.65 × 319,959.92
  4. Step 4: Simplify right side
    825,382.46x = 396,222,577,476.90
  5. Step 5: Solve for x
    x = 396,222,577,476.90/825,382.46
  6. Step 6: Final answer
    x = 480,047.25

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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.