Home / 690,904.94-1,036,357.42-269,885.56

Finding the Fourth Proportional to 690,904.94, 1,036,357.42 and 269,885.56

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Solution

The fourth proportional to 690,904.94, 1,036,357.42 and 269,885.56 is: 404,828.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,904.94 : 1,036,357.42 = 269,885.56 : x
  2. Step 2: Convert to fraction form
    690,904.94/1,036,357.42 = 269,885.56/x
  3. Step 3: Cross multiply
    690,904.94x = 1,036,357.42 × 269,885.56
  4. Step 4: Simplify right side
    690,904.94x = 279,697,902,656.86
  5. Step 5: Solve for x
    x = 279,697,902,656.86/690,904.94
  6. Step 6: Final answer
    x = 404,828.34

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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.