Home / 890,416.33-1,332,431.88-770,884.43

Finding the Fourth Proportional to 890,416.33, 1,332,431.88 and 770,884.43

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Solution

The fourth proportional to 890,416.33, 1,332,431.88 and 770,884.43 is: 1,153,562.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,416.33 : 1,332,431.88 = 770,884.43 : x
  2. Step 2: Convert to fraction form
    890,416.33/1,332,431.88 = 770,884.43/x
  3. Step 3: Cross multiply
    890,416.33x = 1,332,431.88 × 770,884.43
  4. Step 4: Simplify right side
    890,416.33x = 1,027,150,988,662.09
  5. Step 5: Solve for x
    x = 1,027,150,988,662.09/890,416.33
  6. Step 6: Final answer
    x = 1,153,562.61

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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.