Home / 720,154.29-1,080,231.80-187,673.97

Finding the Fourth Proportional to 720,154.29, 1,080,231.80 and 187,673.97

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Solution

The fourth proportional to 720,154.29, 1,080,231.80 and 187,673.97 is: 281,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,154.29 : 1,080,231.80 = 187,673.97 : x
  2. Step 2: Convert to fraction form
    720,154.29/1,080,231.80 = 187,673.97/x
  3. Step 3: Cross multiply
    720,154.29x = 1,080,231.80 × 187,673.97
  4. Step 4: Simplify right side
    720,154.29x = 202,731,390,426.25
  5. Step 5: Solve for x
    x = 202,731,390,426.25/720,154.29
  6. Step 6: Final answer
    x = 281,511.05

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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.