Home / 2,376,520-3,279,599.20-1,288,791.24

Finding the Fourth Proportional to 2,376,520, 3,279,599.20 and 1,288,791.24

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Solution

The fourth proportional to 2,376,520, 3,279,599.20 and 1,288,791.24 is: 1,778,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376,520 : 3,279,599.20 = 1,288,791.24 : x
  2. Step 2: Convert to fraction form
    2,376,520/3,279,599.20 = 1,288,791.24/x
  3. Step 3: Cross multiply
    2,376,520x = 3,279,599.20 × 1,288,791.24
  4. Step 4: Simplify right side
    2,376,520x = 4,226,718,719,671.01
  5. Step 5: Solve for x
    x = 4,226,718,719,671.01/2,376,520
  6. Step 6: Final answer
    x = 1,778,532.78

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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.