Home / 720,148.29-1,080,222.79-187,667.97

Finding the Fourth Proportional to 720,148.29, 1,080,222.79 and 187,667.97

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Solution

The fourth proportional to 720,148.29, 1,080,222.79 and 187,667.97 is: 281,502.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,148.29 : 1,080,222.79 = 187,667.97 : x
  2. Step 2: Convert to fraction form
    720,148.29/1,080,222.79 = 187,667.97/x
  3. Step 3: Cross multiply
    720,148.29x = 1,080,222.79 × 187,667.97
  4. Step 4: Simplify right side
    720,148.29x = 202,723,218,147.04
  5. Step 5: Solve for x
    x = 202,723,218,147.04/720,148.29
  6. Step 6: Final answer
    x = 281,502.05

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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.