Home / 781,436.62-1,172,179.23-269,096.50

Finding the Fourth Proportional to 781,436.62, 1,172,179.23 and 269,096.50

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Solution

The fourth proportional to 781,436.62, 1,172,179.23 and 269,096.50 is: 403,653.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,436.62 : 1,172,179.23 = 269,096.50 : x
  2. Step 2: Convert to fraction form
    781,436.62/1,172,179.23 = 269,096.50/x
  3. Step 3: Cross multiply
    781,436.62x = 1,172,179.23 × 269,096.50
  4. Step 4: Simplify right side
    781,436.62x = 315,429,328,165.70
  5. Step 5: Solve for x
    x = 315,429,328,165.70/781,436.62
  6. Step 6: Final answer
    x = 403,653.12

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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.