Home / 681,035.09-1,021,552.65-321,122.16

Finding the Fourth Proportional to 681,035.09, 1,021,552.65 and 321,122.16

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Solution

The fourth proportional to 681,035.09, 1,021,552.65 and 321,122.16 is: 481,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,035.09 : 1,021,552.65 = 321,122.16 : x
  2. Step 2: Convert to fraction form
    681,035.09/1,021,552.65 = 321,122.16/x
  3. Step 3: Cross multiply
    681,035.09x = 1,021,552.65 × 321,122.16
  4. Step 4: Simplify right side
    681,035.09x = 328,043,193,521.72
  5. Step 5: Solve for x
    x = 328,043,193,521.72/681,035.09
  6. Step 6: Final answer
    x = 481,683.25

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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.