Home / 886,534.72-1,329,988.91-287,449.17

Finding the Fourth Proportional to 886,534.72, 1,329,988.91 and 287,449.17

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Solution

The fourth proportional to 886,534.72, 1,329,988.91 and 287,449.17 is: 431,234.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,534.72 : 1,329,988.91 = 287,449.17 : x
  2. Step 2: Convert to fraction form
    886,534.72/1,329,988.91 = 287,449.17/x
  3. Step 3: Cross multiply
    886,534.72x = 1,329,988.91 × 287,449.17
  4. Step 4: Simplify right side
    886,534.72x = 382,304,208,288.71
  5. Step 5: Solve for x
    x = 382,304,208,288.71/886,534.72
  6. Step 6: Final answer
    x = 431,234.33

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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.