Home / 2,376,638.48-3,279,738.78-1,288,934.06

Finding the Fourth Proportional to 2,376,638.48, 3,279,738.78 and 1,288,934.06

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Solution

The fourth proportional to 2,376,638.48, 3,279,738.78 and 1,288,934.06 is: 1,778,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376,638.48 : 3,279,738.78 = 1,288,934.06 : x
  2. Step 2: Convert to fraction form
    2,376,638.48/3,279,738.78 = 1,288,934.06/x
  3. Step 3: Cross multiply
    2,376,638.48x = 3,279,738.78 × 1,288,934.06
  4. Step 4: Simplify right side
    2,376,638.48x = 4,227,367,021,444.85
  5. Step 5: Solve for x
    x = 4,227,367,021,444.85/2,376,638.48
  6. Step 6: Final answer
    x = 1,778,716.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.