Home / 641,548.26-962,312.31-220,827.78

Finding the Fourth Proportional to 641,548.26, 962,312.31 and 220,827.78

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Solution

The fourth proportional to 641,548.26, 962,312.31 and 220,827.78 is: 331,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,548.26 : 962,312.31 = 220,827.78 : x
  2. Step 2: Convert to fraction form
    641,548.26/962,312.31 = 220,827.78/x
  3. Step 3: Cross multiply
    641,548.26x = 962,312.31 × 220,827.78
  4. Step 4: Simplify right side
    641,548.26x = 212,505,291,083.97
  5. Step 5: Solve for x
    x = 212,505,291,083.97/641,548.26
  6. Step 6: Final answer
    x = 331,238.20

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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.