Home / 690,892.12-1,036,338.18-269,872.75

Finding the Fourth Proportional to 690,892.12, 1,036,338.18 and 269,872.75

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Solution

The fourth proportional to 690,892.12, 1,036,338.18 and 269,872.75 is: 404,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,892.12 : 1,036,338.18 = 269,872.75 : x
  2. Step 2: Convert to fraction form
    690,892.12/1,036,338.18 = 269,872.75/x
  3. Step 3: Cross multiply
    690,892.12x = 1,036,338.18 × 269,872.75
  4. Step 4: Simplify right side
    690,892.12x = 279,679,434,566.60
  5. Step 5: Solve for x
    x = 279,679,434,566.60/690,892.12
  6. Step 6: Final answer
    x = 404,809.13

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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.