Home / 758,982.32-1,138,305.79-219,121.30

Finding the Fourth Proportional to 758,982.32, 1,138,305.79 and 219,121.30

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Solution

The fourth proportional to 758,982.32, 1,138,305.79 and 219,121.30 is: 328,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,982.32 : 1,138,305.79 = 219,121.30 : x
  2. Step 2: Convert to fraction form
    758,982.32/1,138,305.79 = 219,121.30/x
  3. Step 3: Cross multiply
    758,982.32x = 1,138,305.79 × 219,121.30
  4. Step 4: Simplify right side
    758,982.32x = 249,427,046,199.11
  5. Step 5: Solve for x
    x = 249,427,046,199.11/758,982.32
  6. Step 6: Final answer
    x = 328,633.54

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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.