Home / 817,253.78-1,226,233.20-311,966.52

Finding the Fourth Proportional to 817,253.78, 1,226,233.20 and 311,966.52

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Solution

The fourth proportional to 817,253.78, 1,226,233.20 and 311,966.52 is: 468,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,253.78 : 1,226,233.20 = 311,966.52 : x
  2. Step 2: Convert to fraction form
    817,253.78/1,226,233.20 = 311,966.52/x
  3. Step 3: Cross multiply
    817,253.78x = 1,226,233.20 × 311,966.52
  4. Step 4: Simplify right side
    817,253.78x = 382,543,704,112.46
  5. Step 5: Solve for x
    x = 382,543,704,112.46/817,253.78
  6. Step 6: Final answer
    x = 468,084.35

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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.