Home / 756,760.77-1,043,687.35-639,462.37

Finding the Fourth Proportional to 756,760.77, 1,043,687.35 and 639,462.37

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Solution

The fourth proportional to 756,760.77, 1,043,687.35 and 639,462.37 is: 881,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,760.77 : 1,043,687.35 = 639,462.37 : x
  2. Step 2: Convert to fraction form
    756,760.77/1,043,687.35 = 639,462.37/x
  3. Step 3: Cross multiply
    756,760.77x = 1,043,687.35 × 639,462.37
  4. Step 4: Simplify right side
    756,760.77x = 667,398,786,370.02
  5. Step 5: Solve for x
    x = 667,398,786,370.02/756,760.77
  6. Step 6: Final answer
    x = 881,915.15

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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.