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Finding the Fourth Proportional to 891,863.56, 1,230,765.46 and 483,955.03

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Solution

The fourth proportional to 891,863.56, 1,230,765.46 and 483,955.03 is: 667,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,863.56 : 1,230,765.46 = 483,955.03 : x
  2. Step 2: Convert to fraction form
    891,863.56/1,230,765.46 = 483,955.03/x
  3. Step 3: Cross multiply
    891,863.56x = 1,230,765.46 × 483,955.03
  4. Step 4: Simplify right side
    891,863.56x = 595,635,135,117.26
  5. Step 5: Solve for x
    x = 595,635,135,117.26/891,863.56
  6. Step 6: Final answer
    x = 667,854.55

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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.