Home / 712,115.22-982,718.91-389,825.52

Finding the Fourth Proportional to 712,115.22, 982,718.91 and 389,825.52

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Solution

The fourth proportional to 712,115.22, 982,718.91 and 389,825.52 is: 537,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,115.22 : 982,718.91 = 389,825.52 : x
  2. Step 2: Convert to fraction form
    712,115.22/982,718.91 = 389,825.52/x
  3. Step 3: Cross multiply
    712,115.22x = 982,718.91 × 389,825.52
  4. Step 4: Simplify right side
    712,115.22x = 383,088,910,104.58
  5. Step 5: Solve for x
    x = 383,088,910,104.58/712,115.22
  6. Step 6: Final answer
    x = 537,959.17

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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.