Home / 1,261,782.28-1,741,262.34-688,822.60

Finding the Fourth Proportional to 1,261,782.28, 1,741,262.34 and 688,822.60

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Solution

The fourth proportional to 1,261,782.28, 1,741,262.34 and 688,822.60 is: 950,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,782.28 : 1,741,262.34 = 688,822.60 : x
  2. Step 2: Convert to fraction form
    1,261,782.28/1,741,262.34 = 688,822.60/x
  3. Step 3: Cross multiply
    1,261,782.28x = 1,741,262.34 × 688,822.60
  4. Step 4: Simplify right side
    1,261,782.28x = 1,199,420,852,320.88
  5. Step 5: Solve for x
    x = 1,199,420,852,320.88/1,261,782.28
  6. Step 6: Final answer
    x = 950,576.71

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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.