Home / 492,789.64-739,231.14-137,803.60

Finding the Fourth Proportional to 492,789.64, 739,231.14 and 137,803.60

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Solution

The fourth proportional to 492,789.64, 739,231.14 and 137,803.60 is: 206,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,789.64 : 739,231.14 = 137,803.60 : x
  2. Step 2: Convert to fraction form
    492,789.64/739,231.14 = 137,803.60/x
  3. Step 3: Cross multiply
    492,789.64x = 739,231.14 × 137,803.60
  4. Step 4: Simplify right side
    492,789.64x = 101,868,712,324.10
  5. Step 5: Solve for x
    x = 101,868,712,324.10/492,789.64
  6. Step 6: Final answer
    x = 206,718.45

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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.