Home / 3,315,122.80-4,972,191.50-918,717.54

Finding the Fourth Proportional to 3,315,122.80, 4,972,191.50 and 918,717.54

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Solution

The fourth proportional to 3,315,122.80, 4,972,191.50 and 918,717.54 is: 1,377,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,122.80 : 4,972,191.50 = 918,717.54 : x
  2. Step 2: Convert to fraction form
    3,315,122.80/4,972,191.50 = 918,717.54/x
  3. Step 3: Cross multiply
    3,315,122.80x = 4,972,191.50 × 918,717.54
  4. Step 4: Simplify right side
    3,315,122.80x = 4,568,039,543,288.91
  5. Step 5: Solve for x
    x = 4,568,039,543,288.91/3,315,122.80
  6. Step 6: Final answer
    x = 1,377,939.77

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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.