Home / 690,904.78-1,036,357.17-269,885.41

Finding the Fourth Proportional to 690,904.78, 1,036,357.17 and 269,885.41

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Solution

The fourth proportional to 690,904.78, 1,036,357.17 and 269,885.41 is: 404,828.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,904.78 : 1,036,357.17 = 269,885.41 : x
  2. Step 2: Convert to fraction form
    690,904.78/1,036,357.17 = 269,885.41/x
  3. Step 3: Cross multiply
    690,904.78x = 1,036,357.17 × 269,885.41
  4. Step 4: Simplify right side
    690,904.78x = 279,697,679,731.89
  5. Step 5: Solve for x
    x = 279,697,679,731.89/690,904.78
  6. Step 6: Final answer
    x = 404,828.12

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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.