Home / 492,824.52-739,278.70-137,838.78

Finding the Fourth Proportional to 492,824.52, 739,278.70 and 137,838.78

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Solution

The fourth proportional to 492,824.52, 739,278.70 and 137,838.78 is: 206,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,824.52 : 739,278.70 = 137,838.78 : x
  2. Step 2: Convert to fraction form
    492,824.52/739,278.70 = 137,838.78/x
  3. Step 3: Cross multiply
    492,824.52x = 739,278.70 × 137,838.78
  4. Step 4: Simplify right side
    492,824.52x = 101,901,273,743.39
  5. Step 5: Solve for x
    x = 101,901,273,743.39/492,824.52
  6. Step 6: Final answer
    x = 206,769.89

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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.