Home / 818,872.88-1,228,353.32-257,951.28

Finding the Fourth Proportional to 818,872.88, 1,228,353.32 and 257,951.28

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Solution

The fourth proportional to 818,872.88, 1,228,353.32 and 257,951.28 is: 386,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,872.88 : 1,228,353.32 = 257,951.28 : x
  2. Step 2: Convert to fraction form
    818,872.88/1,228,353.32 = 257,951.28/x
  3. Step 3: Cross multiply
    818,872.88x = 1,228,353.32 × 257,951.28
  4. Step 4: Simplify right side
    818,872.88x = 316,855,311,186.25
  5. Step 5: Solve for x
    x = 316,855,311,186.25/818,872.88
  6. Step 6: Final answer
    x = 386,940.78

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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.