Home / 1,288,756.22-1,778,286.10-744,787.06

Finding the Fourth Proportional to 1,288,756.22, 1,778,286.10 and 744,787.06

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Solution

The fourth proportional to 1,288,756.22, 1,778,286.10 and 744,787.06 is: 1,027,692.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,756.22 : 1,778,286.10 = 744,787.06 : x
  2. Step 2: Convert to fraction form
    1,288,756.22/1,778,286.10 = 744,787.06/x
  3. Step 3: Cross multiply
    1,288,756.22x = 1,778,286.10 × 744,787.06
  4. Step 4: Simplify right side
    1,288,756.22x = 1,324,444,476,257.87
  5. Step 5: Solve for x
    x = 1,324,444,476,257.87/1,288,756.22
  6. Step 6: Final answer
    x = 1,027,692.01

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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.