Home / 686,571.28-1,029,716.13-259,959.94

Finding the Fourth Proportional to 686,571.28, 1,029,716.13 and 259,959.94

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Solution

The fourth proportional to 686,571.28, 1,029,716.13 and 259,959.94 is: 389,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,571.28 : 1,029,716.13 = 259,959.94 : x
  2. Step 2: Convert to fraction form
    686,571.28/1,029,716.13 = 259,959.94/x
  3. Step 3: Cross multiply
    686,571.28x = 1,029,716.13 × 259,959.94
  4. Step 4: Simplify right side
    686,571.28x = 267,684,943,371.83
  5. Step 5: Solve for x
    x = 267,684,943,371.83/686,571.28
  6. Step 6: Final answer
    x = 389,886.60

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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.