Home / 825,480.54-1,238,013.06-319,868.04

Finding the Fourth Proportional to 825,480.54, 1,238,013.06 and 319,868.04

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Solution

The fourth proportional to 825,480.54, 1,238,013.06 and 319,868.04 is: 479,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,480.54 : 1,238,013.06 = 319,868.04 : x
  2. Step 2: Convert to fraction form
    825,480.54/1,238,013.06 = 319,868.04/x
  3. Step 3: Cross multiply
    825,480.54x = 1,238,013.06 × 319,868.04
  4. Step 4: Simplify right side
    825,480.54x = 396,000,810,996.60
  5. Step 5: Solve for x
    x = 396,000,810,996.60/825,480.54
  6. Step 6: Final answer
    x = 479,721.56

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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.