Home / 3,315,138.80-4,972,215.51-918,733.55

Finding the Fourth Proportional to 3,315,138.80, 4,972,215.51 and 918,733.55

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Solution

The fourth proportional to 3,315,138.80, 4,972,215.51 and 918,733.55 is: 1,377,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,138.80 : 4,972,215.51 = 918,733.55 : x
  2. Step 2: Convert to fraction form
    3,315,138.80/4,972,215.51 = 918,733.55/x
  3. Step 3: Cross multiply
    3,315,138.80x = 4,972,215.51 × 918,733.55
  4. Step 4: Simplify right side
    3,315,138.80x = 4,568,141,182,006.28
  5. Step 5: Solve for x
    x = 4,568,141,182,006.28/3,315,138.80
  6. Step 6: Final answer
    x = 1,377,963.78

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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.