Home / 1,261,353.78-1,740,062.81-825,579.28

Finding the Fourth Proportional to 1,261,353.78, 1,740,062.81 and 825,579.28

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Solution

The fourth proportional to 1,261,353.78, 1,740,062.81 and 825,579.28 is: 1,138,903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,353.78 : 1,740,062.81 = 825,579.28 : x
  2. Step 2: Convert to fraction form
    1,261,353.78/1,740,062.81 = 825,579.28/x
  3. Step 3: Cross multiply
    1,261,353.78x = 1,740,062.81 × 825,579.28
  4. Step 4: Simplify right side
    1,261,353.78x = 1,436,559,801,834.58
  5. Step 5: Solve for x
    x = 1,436,559,801,834.58/1,261,353.78
  6. Step 6: Final answer
    x = 1,138,903.16

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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.