Home / 654,644.28-903,394.92-379,013.76

Finding the Fourth Proportional to 654,644.28, 903,394.92 and 379,013.76

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Solution

The fourth proportional to 654,644.28, 903,394.92 and 379,013.76 is: 523,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,644.28 : 903,394.92 = 379,013.76 : x
  2. Step 2: Convert to fraction form
    654,644.28/903,394.92 = 379,013.76/x
  3. Step 3: Cross multiply
    654,644.28x = 903,394.92 × 379,013.76
  4. Step 4: Simplify right side
    654,644.28x = 342,399,105,394.10
  5. Step 5: Solve for x
    x = 342,399,105,394.10/654,644.28
  6. Step 6: Final answer
    x = 523,030.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.