Home / 681,034.25-1,021,551.36-321,121.32

Finding the Fourth Proportional to 681,034.25, 1,021,551.36 and 321,121.32

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Solution

The fourth proportional to 681,034.25, 1,021,551.36 and 321,121.32 is: 481,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,034.25 : 1,021,551.36 = 321,121.32 : x
  2. Step 2: Convert to fraction form
    681,034.25/1,021,551.36 = 321,121.32/x
  3. Step 3: Cross multiply
    681,034.25x = 1,021,551.36 × 321,121.32
  4. Step 4: Simplify right side
    681,034.25x = 328,041,921,171.00
  5. Step 5: Solve for x
    x = 328,041,921,171.00/681,034.25
  6. Step 6: Final answer
    x = 481,681.98

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Double scale
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Similar ratio
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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.