Home / 1,340,859.78-1,850,121.81-752,178.78

Finding the Fourth Proportional to 1,340,859.78, 1,850,121.81 and 752,178.78

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Solution

The fourth proportional to 1,340,859.78, 1,850,121.81 and 752,178.78 is: 1,037,858.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,859.78 : 1,850,121.81 = 752,178.78 : x
  2. Step 2: Convert to fraction form
    1,340,859.78/1,850,121.81 = 752,178.78/x
  3. Step 3: Cross multiply
    1,340,859.78x = 1,850,121.81 × 752,178.78
  4. Step 4: Simplify right side
    1,340,859.78x = 1,391,622,365,897.19
  5. Step 5: Solve for x
    x = 1,391,622,365,897.19/1,340,859.78
  6. Step 6: Final answer
    x = 1,037,858.24

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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.