Home / 723,912.17-1,085,958.77-218,472.35

Finding the Fourth Proportional to 723,912.17, 1,085,958.77 and 218,472.35

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Solution

The fourth proportional to 723,912.17, 1,085,958.77 and 218,472.35 is: 327,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,912.17 : 1,085,958.77 = 218,472.35 : x
  2. Step 2: Convert to fraction form
    723,912.17/1,085,958.77 = 218,472.35/x
  3. Step 3: Cross multiply
    723,912.17x = 1,085,958.77 × 218,472.35
  4. Step 4: Simplify right side
    723,912.17x = 237,251,957,962.85
  5. Step 5: Solve for x
    x = 237,251,957,962.85/723,912.17
  6. Step 6: Final answer
    x = 327,735.84

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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.