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Finding the Fourth Proportional to 951,470, 1,311,758.38 and 755,885.45

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Solution

The fourth proportional to 951,470, 1,311,758.38 and 755,885.45 is: 1,042,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,470 : 1,311,758.38 = 755,885.45 : x
  2. Step 2: Convert to fraction form
    951,470/1,311,758.38 = 755,885.45/x
  3. Step 3: Cross multiply
    951,470x = 1,311,758.38 × 755,885.45
  4. Step 4: Simplify right side
    951,470x = 991,539,073,357.57
  5. Step 5: Solve for x
    x = 991,539,073,357.57/951,470
  6. Step 6: Final answer
    x = 1,042,112.81

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1.5x scale

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.