Home / 690,895.82-1,036,343.72-269,876.45

Finding the Fourth Proportional to 690,895.82, 1,036,343.72 and 269,876.45

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Solution

The fourth proportional to 690,895.82, 1,036,343.72 and 269,876.45 is: 404,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,895.82 : 1,036,343.72 = 269,876.45 : x
  2. Step 2: Convert to fraction form
    690,895.82/1,036,343.72 = 269,876.45/x
  3. Step 3: Cross multiply
    690,895.82x = 1,036,343.72 × 269,876.45
  4. Step 4: Simplify right side
    690,895.82x = 279,684,757,602.29
  5. Step 5: Solve for x
    x = 279,684,757,602.29/690,895.82
  6. Step 6: Final answer
    x = 404,814.66

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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.