Home / 1,245,073.60-1,867,610.40-1,138,785.40

Finding the Fourth Proportional to 1,245,073.60, 1,867,610.40 and 1,138,785.40

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Solution

The fourth proportional to 1,245,073.60, 1,867,610.40 and 1,138,785.40 is: 1,708,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,073.60 : 1,867,610.40 = 1,138,785.40 : x
  2. Step 2: Convert to fraction form
    1,245,073.60/1,867,610.40 = 1,138,785.40/x
  3. Step 3: Cross multiply
    1,245,073.60x = 1,867,610.40 × 1,138,785.40
  4. Step 4: Simplify right side
    1,245,073.60x = 2,126,807,456,408.16
  5. Step 5: Solve for x
    x = 2,126,807,456,408.16/1,245,073.60
  6. Step 6: Final answer
    x = 1,708,178.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.