Home / 723,874.61-1,085,820.28-218,439.97

Finding the Fourth Proportional to 723,874.61, 1,085,820.28 and 218,439.97

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Solution

The fourth proportional to 723,874.61, 1,085,820.28 and 218,439.97 is: 327,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,874.61 : 1,085,820.28 = 218,439.97 : x
  2. Step 2: Convert to fraction form
    723,874.61/1,085,820.28 = 218,439.97/x
  3. Step 3: Cross multiply
    723,874.61x = 1,085,820.28 × 218,439.97
  4. Step 4: Simplify right side
    723,874.61x = 237,186,542,867.29
  5. Step 5: Solve for x
    x = 237,186,542,867.29/723,874.61
  6. Step 6: Final answer
    x = 327,662.47

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1.5x scale

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.