Home / 1,378,648.47-2,067,698.88-1,310,292.57

Finding the Fourth Proportional to 1,378,648.47, 2,067,698.88 and 1,310,292.57

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Solution

The fourth proportional to 1,378,648.47, 2,067,698.88 and 1,310,292.57 is: 1,965,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,648.47 : 2,067,698.88 = 1,310,292.57 : x
  2. Step 2: Convert to fraction form
    1,378,648.47/2,067,698.88 = 1,310,292.57/x
  3. Step 3: Cross multiply
    1,378,648.47x = 2,067,698.88 × 1,310,292.57
  4. Step 4: Simplify right side
    1,378,648.47x = 2,709,290,479,461.32
  5. Step 5: Solve for x
    x = 2,709,290,479,461.32/1,378,648.47
  6. Step 6: Final answer
    x = 1,965,178.61

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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.