Home / 658,974.28-988,086.38-259,398.36

Finding the Fourth Proportional to 658,974.28, 988,086.38 and 259,398.36

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Solution

The fourth proportional to 658,974.28, 988,086.38 and 259,398.36 is: 388,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,974.28 : 988,086.38 = 259,398.36 : x
  2. Step 2: Convert to fraction form
    658,974.28/988,086.38 = 259,398.36/x
  3. Step 3: Cross multiply
    658,974.28x = 988,086.38 × 259,398.36
  4. Step 4: Simplify right side
    658,974.28x = 256,307,986,510.34
  5. Step 5: Solve for x
    x = 256,307,986,510.34/658,974.28
  6. Step 6: Final answer
    x = 388,949.91

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1.5x scale

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.