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Finding the Fourth Proportional to 890,414.93, 1,332,429.77 and 770,883.03

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Solution

The fourth proportional to 890,414.93, 1,332,429.77 and 770,883.03 is: 1,153,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,414.93 : 1,332,429.77 = 770,883.03 : x
  2. Step 2: Convert to fraction form
    890,414.93/1,332,429.77 = 770,883.03/x
  3. Step 3: Cross multiply
    890,414.93x = 1,332,429.77 × 770,883.03
  4. Step 4: Simplify right side
    890,414.93x = 1,027,147,494,505.39
  5. Step 5: Solve for x
    x = 1,027,147,494,505.39/890,414.93
  6. Step 6: Final answer
    x = 1,153,560.51

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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.