Home / 723,876.61-1,085,823.28-218,441.97

Finding the Fourth Proportional to 723,876.61, 1,085,823.28 and 218,441.97

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Solution

The fourth proportional to 723,876.61, 1,085,823.28 and 218,441.97 is: 327,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,876.61 : 1,085,823.28 = 218,441.97 : x
  2. Step 2: Convert to fraction form
    723,876.61/1,085,823.28 = 218,441.97/x
  3. Step 3: Cross multiply
    723,876.61x = 1,085,823.28 × 218,441.97
  4. Step 4: Simplify right side
    723,876.61x = 237,189,376,355.06
  5. Step 5: Solve for x
    x = 237,189,376,355.06/723,876.61
  6. Step 6: Final answer
    x = 327,665.48

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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.