Home / 2,138,250.15-2,950,785.05-1,278,810.38

Finding the Fourth Proportional to 2,138,250.15, 2,950,785.05 and 1,278,810.38

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Solution

The fourth proportional to 2,138,250.15, 2,950,785.05 and 1,278,810.38 is: 1,764,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,250.15 : 2,950,785.05 = 1,278,810.38 : x
  2. Step 2: Convert to fraction form
    2,138,250.15/2,950,785.05 = 1,278,810.38/x
  3. Step 3: Cross multiply
    2,138,250.15x = 2,950,785.05 × 1,278,810.38
  4. Step 4: Simplify right side
    2,138,250.15x = 3,773,494,552,071.73
  5. Step 5: Solve for x
    x = 3,773,494,552,071.73/2,138,250.15
  6. Step 6: Final answer
    x = 1,764,758.23

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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.