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Finding the Fourth Proportional to 1,264,903.97, 1,745,569.78 and 691,944.15

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Solution

The fourth proportional to 1,264,903.97, 1,745,569.78 and 691,944.15 is: 954,884.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,903.97 : 1,745,569.78 = 691,944.15 : x
  2. Step 2: Convert to fraction form
    1,264,903.97/1,745,569.78 = 691,944.15/x
  3. Step 3: Cross multiply
    1,264,903.97x = 1,745,569.78 × 691,944.15
  4. Step 4: Simplify right side
    1,264,903.97x = 1,207,836,791,435.48
  5. Step 5: Solve for x
    x = 1,207,836,791,435.48/1,264,903.97
  6. Step 6: Final answer
    x = 954,884.18

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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.