Home / 690,902.78-1,036,354.18-269,883.42

Finding the Fourth Proportional to 690,902.78, 1,036,354.18 and 269,883.42

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Solution

The fourth proportional to 690,902.78, 1,036,354.18 and 269,883.42 is: 404,825.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,902.78 : 1,036,354.18 = 269,883.42 : x
  2. Step 2: Convert to fraction form
    690,902.78/1,036,354.18 = 269,883.42/x
  3. Step 3: Cross multiply
    690,902.78x = 1,036,354.18 × 269,883.42
  4. Step 4: Simplify right side
    690,902.78x = 279,694,810,429.70
  5. Step 5: Solve for x
    x = 279,694,810,429.70/690,902.78
  6. Step 6: Final answer
    x = 404,825.13

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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.