Home / 925,738.50-1,388,248.79-318,411.33

Finding the Fourth Proportional to 925,738.50, 1,388,248.79 and 318,411.33

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Solution

The fourth proportional to 925,738.50, 1,388,248.79 and 318,411.33 is: 477,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,738.50 : 1,388,248.79 = 318,411.33 : x
  2. Step 2: Convert to fraction form
    925,738.50/1,388,248.79 = 318,411.33/x
  3. Step 3: Cross multiply
    925,738.50x = 1,388,248.79 × 318,411.33
  4. Step 4: Simplify right side
    925,738.50x = 442,034,141,149.00
  5. Step 5: Solve for x
    x = 442,034,141,149.00/925,738.50
  6. Step 6: Final answer
    x = 477,493.53

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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.