Home / 668,760.79-1,003,129.57-269,391.35

Finding the Fourth Proportional to 668,760.79, 1,003,129.57 and 269,391.35

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Solution

The fourth proportional to 668,760.79, 1,003,129.57 and 269,391.35 is: 404,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,760.79 : 1,003,129.57 = 269,391.35 : x
  2. Step 2: Convert to fraction form
    668,760.79/1,003,129.57 = 269,391.35/x
  3. Step 3: Cross multiply
    668,760.79x = 1,003,129.57 × 269,391.35
  4. Step 4: Simplify right side
    668,760.79x = 270,234,429,087.22
  5. Step 5: Solve for x
    x = 270,234,429,087.22/668,760.79
  6. Step 6: Final answer
    x = 404,082.35

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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.