Home / 681,178.50-1,021,767.12-321,265.38

Finding the Fourth Proportional to 681,178.50, 1,021,767.12 and 321,265.38

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Solution

The fourth proportional to 681,178.50, 1,021,767.12 and 321,265.38 is: 481,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,178.50 : 1,021,767.12 = 321,265.38 : x
  2. Step 2: Convert to fraction form
    681,178.50/1,021,767.12 = 321,265.38/x
  3. Step 3: Cross multiply
    681,178.50x = 1,021,767.12 × 321,265.38
  4. Step 4: Simplify right side
    681,178.50x = 328,258,402,078.31
  5. Step 5: Solve for x
    x = 328,258,402,078.31/681,178.50
  6. Step 6: Final answer
    x = 481,897.77

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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.