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Finding the Fourth Proportional to 681,245.58, 940,119.77 and 371,146.62

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Solution

The fourth proportional to 681,245.58, 940,119.77 and 371,146.62 is: 512,182.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,245.58 : 940,119.77 = 371,146.62 : x
  2. Step 2: Convert to fraction form
    681,245.58/940,119.77 = 371,146.62/x
  3. Step 3: Cross multiply
    681,245.58x = 940,119.77 × 371,146.62
  4. Step 4: Simplify right side
    681,245.58x = 348,922,273,174.94
  5. Step 5: Solve for x
    x = 348,922,273,174.94/681,245.58
  6. Step 6: Final answer
    x = 512,182.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.