Home / 938,540.88-1,296,255.62-636,210

Finding the Fourth Proportional to 938,540.88, 1,296,255.62 and 636,210

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Solution

The fourth proportional to 938,540.88, 1,296,255.62 and 636,210 is: 878,694.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,540.88 : 1,296,255.62 = 636,210 : x
  2. Step 2: Convert to fraction form
    938,540.88/1,296,255.62 = 636,210/x
  3. Step 3: Cross multiply
    938,540.88x = 1,296,255.62 × 636,210
  4. Step 4: Simplify right side
    938,540.88x = 824,690,788,000.20
  5. Step 5: Solve for x
    x = 824,690,788,000.20/938,540.88
  6. Step 6: Final answer
    x = 878,694.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.