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Finding the Fourth Proportional to 1,971,306.60, 2,956,959.90 and 849,375.60

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Solution

The fourth proportional to 1,971,306.60, 2,956,959.90 and 849,375.60 is: 1,274,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,306.60 : 2,956,959.90 = 849,375.60 : x
  2. Step 2: Convert to fraction form
    1,971,306.60/2,956,959.90 = 849,375.60/x
  3. Step 3: Cross multiply
    1,971,306.60x = 2,956,959.90 × 849,375.60
  4. Step 4: Simplify right side
    1,971,306.60x = 2,511,569,589,238.44
  5. Step 5: Solve for x
    x = 2,511,569,589,238.44/1,971,306.60
  6. Step 6: Final answer
    x = 1,274,063.40

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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.