Home / 1,245,105.70-1,867,658.55-1,134,880.90

Finding the Fourth Proportional to 1,245,105.70, 1,867,658.55 and 1,134,880.90

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Solution

The fourth proportional to 1,245,105.70, 1,867,658.55 and 1,134,880.90 is: 1,702,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,105.70 : 1,867,658.55 = 1,134,880.90 : x
  2. Step 2: Convert to fraction form
    1,245,105.70/1,867,658.55 = 1,134,880.90/x
  3. Step 3: Cross multiply
    1,245,105.70x = 1,867,658.55 × 1,134,880.90
  4. Step 4: Simplify right side
    1,245,105.70x = 2,119,570,016,116.69
  5. Step 5: Solve for x
    x = 2,119,570,016,116.69/1,245,105.70
  6. Step 6: Final answer
    x = 1,702,321.35

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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.