Home / 681,045.58-1,021,568.38-321,132.68

Finding the Fourth Proportional to 681,045.58, 1,021,568.38 and 321,132.68

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Solution

The fourth proportional to 681,045.58, 1,021,568.38 and 321,132.68 is: 481,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,045.58 : 1,021,568.38 = 321,132.68 : x
  2. Step 2: Convert to fraction form
    681,045.58/1,021,568.38 = 321,132.68/x
  3. Step 3: Cross multiply
    681,045.58x = 1,021,568.38 × 321,132.68
  4. Step 4: Simplify right side
    681,045.58x = 328,058,991,672.66
  5. Step 5: Solve for x
    x = 328,058,991,672.66/681,045.58
  6. Step 6: Final answer
    x = 481,699.02

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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.