Home / 492,456.27-739,016.81-192,899.71

Finding the Fourth Proportional to 492,456.27, 739,016.81 and 192,899.71

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Solution

The fourth proportional to 492,456.27, 739,016.81 and 192,899.71 is: 289,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,456.27 : 739,016.81 = 192,899.71 : x
  2. Step 2: Convert to fraction form
    492,456.27/739,016.81 = 192,899.71/x
  3. Step 3: Cross multiply
    492,456.27x = 739,016.81 × 192,899.71
  4. Step 4: Simplify right side
    492,456.27x = 142,556,128,334.13
  5. Step 5: Solve for x
    x = 142,556,128,334.13/492,456.27
  6. Step 6: Final answer
    x = 289,479.77

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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.