Home / 1,261,353.28-1,740,062.12-825,578.78

Finding the Fourth Proportional to 1,261,353.28, 1,740,062.12 and 825,578.78

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Solution

The fourth proportional to 1,261,353.28, 1,740,062.12 and 825,578.78 is: 1,138,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,353.28 : 1,740,062.12 = 825,578.78 : x
  2. Step 2: Convert to fraction form
    1,261,353.28/1,740,062.12 = 825,578.78/x
  3. Step 3: Cross multiply
    1,261,353.28x = 1,740,062.12 × 825,578.78
  4. Step 4: Simplify right side
    1,261,353.28x = 1,436,558,362,153.81
  5. Step 5: Solve for x
    x = 1,436,558,362,153.81/1,261,353.28
  6. Step 6: Final answer
    x = 1,138,902.47

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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.