Home / 1,261,941.20-1,741,469.76-688,981.38

Finding the Fourth Proportional to 1,261,941.20, 1,741,469.76 and 688,981.38

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Solution

The fourth proportional to 1,261,941.20, 1,741,469.76 and 688,981.38 is: 950,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,941.20 : 1,741,469.76 = 688,981.38 : x
  2. Step 2: Convert to fraction form
    1,261,941.20/1,741,469.76 = 688,981.38/x
  3. Step 3: Cross multiply
    1,261,941.20x = 1,741,469.76 × 688,981.38
  4. Step 4: Simplify right side
    1,261,941.20x = 1,199,840,238,473.07
  5. Step 5: Solve for x
    x = 1,199,840,238,473.07/1,261,941.20
  6. Step 6: Final answer
    x = 950,789.34

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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.