Home / 657,982.91-987,339.31-321,026.36

Finding the Fourth Proportional to 657,982.91, 987,339.31 and 321,026.36

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Solution

The fourth proportional to 657,982.91, 987,339.31 and 321,026.36 is: 481,717.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,982.91 : 987,339.31 = 321,026.36 : x
  2. Step 2: Convert to fraction form
    657,982.91/987,339.31 = 321,026.36/x
  3. Step 3: Cross multiply
    657,982.91x = 987,339.31 × 321,026.36
  4. Step 4: Simplify right side
    657,982.91x = 316,961,939,034.95
  5. Step 5: Solve for x
    x = 316,961,939,034.95/657,982.91
  6. Step 6: Final answer
    x = 481,717.58

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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.