Home / 661,037.06-991,643.85-261,584.42

Finding the Fourth Proportional to 661,037.06, 991,643.85 and 261,584.42

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Solution

The fourth proportional to 661,037.06, 991,643.85 and 261,584.42 is: 392,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,037.06 : 991,643.85 = 261,584.42 : x
  2. Step 2: Convert to fraction form
    661,037.06/991,643.85 = 261,584.42/x
  3. Step 3: Cross multiply
    661,037.06x = 991,643.85 × 261,584.42
  4. Step 4: Simplify right side
    661,037.06x = 259,398,576,390.60
  5. Step 5: Solve for x
    x = 259,398,576,390.60/661,037.06
  6. Step 6: Final answer
    x = 392,411.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.