Home / 723,876.11-1,085,822.53-218,441.47

Finding the Fourth Proportional to 723,876.11, 1,085,822.53 and 218,441.47

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Solution

The fourth proportional to 723,876.11, 1,085,822.53 and 218,441.47 is: 327,664.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,876.11 : 1,085,822.53 = 218,441.47 : x
  2. Step 2: Convert to fraction form
    723,876.11/1,085,822.53 = 218,441.47/x
  3. Step 3: Cross multiply
    723,876.11x = 1,085,822.53 × 218,441.47
  4. Step 4: Simplify right side
    723,876.11x = 237,188,669,612.32
  5. Step 5: Solve for x
    x = 237,188,669,612.32/723,876.11
  6. Step 6: Final answer
    x = 327,664.73

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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.