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Finding the Fourth Proportional to 680,046.77, 938,451.48 and 374,105.27

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Solution

The fourth proportional to 680,046.77, 938,451.48 and 374,105.27 is: 516,258.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,046.77 : 938,451.48 = 374,105.27 : x
  2. Step 2: Convert to fraction form
    680,046.77/938,451.48 = 374,105.27/x
  3. Step 3: Cross multiply
    680,046.77x = 938,451.48 × 374,105.27
  4. Step 4: Simplify right side
    680,046.77x = 351,079,644,307.30
  5. Step 5: Solve for x
    x = 351,079,644,307.30/680,046.77
  6. Step 6: Final answer
    x = 516,258.09

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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.