Home / 725,178.24-1,087,680.69-192,740.13

Finding the Fourth Proportional to 725,178.24, 1,087,680.69 and 192,740.13

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Solution

The fourth proportional to 725,178.24, 1,087,680.69 and 192,740.13 is: 289,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,178.24 : 1,087,680.69 = 192,740.13 : x
  2. Step 2: Convert to fraction form
    725,178.24/1,087,680.69 = 192,740.13/x
  3. Step 3: Cross multiply
    725,178.24x = 1,087,680.69 × 192,740.13
  4. Step 4: Simplify right side
    725,178.24x = 209,639,717,589.09
  5. Step 5: Solve for x
    x = 209,639,717,589.09/725,178.24
  6. Step 6: Final answer
    x = 289,087.16

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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.