Home / 1,263,168.72-1,743,121.44-690,228.72

Finding the Fourth Proportional to 1,263,168.72, 1,743,121.44 and 690,228.72

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Solution

The fourth proportional to 1,263,168.72, 1,743,121.44 and 690,228.72 is: 952,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,168.72 : 1,743,121.44 = 690,228.72 : x
  2. Step 2: Convert to fraction form
    1,263,168.72/1,743,121.44 = 690,228.72/x
  3. Step 3: Cross multiply
    1,263,168.72x = 1,743,121.44 × 690,228.72
  4. Step 4: Simplify right side
    1,263,168.72x = 1,203,152,480,335.76
  5. Step 5: Solve for x
    x = 1,203,152,480,335.76/1,263,168.72
  6. Step 6: Final answer
    x = 952,487.55

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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.