Home / 862,761.70-1,293,912.15-263,721.70

Finding the Fourth Proportional to 862,761.70, 1,293,912.15 and 263,721.70

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Solution

The fourth proportional to 862,761.70, 1,293,912.15 and 263,721.70 is: 395,512.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,761.70 : 1,293,912.15 = 263,721.70 : x
  2. Step 2: Convert to fraction form
    862,761.70/1,293,912.15 = 263,721.70/x
  3. Step 3: Cross multiply
    862,761.70x = 1,293,912.15 × 263,721.70
  4. Step 4: Simplify right side
    862,761.70x = 341,232,711,848.66
  5. Step 5: Solve for x
    x = 341,232,711,848.66/862,761.70
  6. Step 6: Final answer
    x = 395,512.12

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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.