Home / 1,270,512.50-1,753,310.70-697,589.78

Finding the Fourth Proportional to 1,270,512.50, 1,753,310.70 and 697,589.78

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Solution

The fourth proportional to 1,270,512.50, 1,753,310.70 and 697,589.78 is: 962,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,512.50 : 1,753,310.70 = 697,589.78 : x
  2. Step 2: Convert to fraction form
    1,270,512.50/1,753,310.70 = 697,589.78/x
  3. Step 3: Cross multiply
    1,270,512.50x = 1,753,310.70 × 697,589.78
  4. Step 4: Simplify right side
    1,270,512.50x = 1,223,091,616,718.09
  5. Step 5: Solve for x
    x = 1,223,091,616,718.09/1,270,512.50
  6. Step 6: Final answer
    x = 962,675.79

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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.