Home / 690,900.94-1,036,351.42-269,881.56

Finding the Fourth Proportional to 690,900.94, 1,036,351.42 and 269,881.56

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Solution

The fourth proportional to 690,900.94, 1,036,351.42 and 269,881.56 is: 404,822.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,900.94 : 1,036,351.42 = 269,881.56 : x
  2. Step 2: Convert to fraction form
    690,900.94/1,036,351.42 = 269,881.56/x
  3. Step 3: Cross multiply
    690,900.94x = 1,036,351.42 × 269,881.56
  4. Step 4: Simplify right side
    690,900.94x = 279,692,137,937.82
  5. Step 5: Solve for x
    x = 279,692,137,937.82/690,900.94
  6. Step 6: Final answer
    x = 404,822.34

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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.