Home / 723,874.11-1,085,818.85-218,439.53

Finding the Fourth Proportional to 723,874.11, 1,085,818.85 and 218,439.53

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Solution

The fourth proportional to 723,874.11, 1,085,818.85 and 218,439.53 is: 327,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,874.11 : 1,085,818.85 = 218,439.53 : x
  2. Step 2: Convert to fraction form
    723,874.11/1,085,818.85 = 218,439.53/x
  3. Step 3: Cross multiply
    723,874.11x = 1,085,818.85 × 218,439.53
  4. Step 4: Simplify right side
    723,874.11x = 237,185,752,737.85
  5. Step 5: Solve for x
    x = 237,185,752,737.85/723,874.11
  6. Step 6: Final answer
    x = 327,661.61

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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.