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Finding the Fourth Proportional to 681,850.89, 940,956.60 and 375,920.58

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Solution

The fourth proportional to 681,850.89, 940,956.60 and 375,920.58 is: 518,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,850.89 : 940,956.60 = 375,920.58 : x
  2. Step 2: Convert to fraction form
    681,850.89/940,956.60 = 375,920.58/x
  3. Step 3: Cross multiply
    681,850.89x = 940,956.60 × 375,920.58
  4. Step 4: Simplify right side
    681,850.89x = 353,724,950,826.83
  5. Step 5: Solve for x
    x = 353,724,950,826.83/681,850.89
  6. Step 6: Final answer
    x = 518,771.71

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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.