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Finding the Fourth Proportional to 853,770.75, 1,278,361.14 and 650,397.97

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Solution

The fourth proportional to 853,770.75, 1,278,361.14 and 650,397.97 is: 973,848.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,770.75 : 1,278,361.14 = 650,397.97 : x
  2. Step 2: Convert to fraction form
    853,770.75/1,278,361.14 = 650,397.97/x
  3. Step 3: Cross multiply
    853,770.75x = 1,278,361.14 × 650,397.97
  4. Step 4: Simplify right side
    853,770.75x = 831,443,490,382.89
  5. Step 5: Solve for x
    x = 831,443,490,382.89/853,770.75
  6. Step 6: Final answer
    x = 973,848.65

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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.