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Finding the Fourth Proportional to 681,297.46, 940,181.80 and 371,212.97

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Solution

The fourth proportional to 681,297.46, 940,181.80 and 371,212.97 is: 512,269.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,297.46 : 940,181.80 = 371,212.97 : x
  2. Step 2: Convert to fraction form
    681,297.46/940,181.80 = 371,212.97/x
  3. Step 3: Cross multiply
    681,297.46x = 940,181.80 × 371,212.97
  4. Step 4: Simplify right side
    681,297.46x = 349,007,678,317.95
  5. Step 5: Solve for x
    x = 349,007,678,317.95/681,297.46
  6. Step 6: Final answer
    x = 512,269.16

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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.