Home / 690,876.17-1,036,314.25-269,856.80

Finding the Fourth Proportional to 690,876.17, 1,036,314.25 and 269,856.80

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Solution

The fourth proportional to 690,876.17, 1,036,314.25 and 269,856.80 is: 404,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,876.17 : 1,036,314.25 = 269,856.80 : x
  2. Step 2: Convert to fraction form
    690,876.17/1,036,314.25 = 269,856.80/x
  3. Step 3: Cross multiply
    690,876.17x = 1,036,314.25 × 269,856.80
  4. Step 4: Simplify right side
    690,876.17x = 279,656,447,299.40
  5. Step 5: Solve for x
    x = 279,656,447,299.40/690,876.17
  6. Step 6: Final answer
    x = 404,785.20

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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.