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Finding the Fourth Proportional to 1,786,788.51, 2,465,760.04 and 970,976.76

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Solution

The fourth proportional to 1,786,788.51, 2,465,760.04 and 970,976.76 is: 1,339,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,788.51 : 2,465,760.04 = 970,976.76 : x
  2. Step 2: Convert to fraction form
    1,786,788.51/2,465,760.04 = 970,976.76/x
  3. Step 3: Cross multiply
    1,786,788.51x = 2,465,760.04 × 970,976.76
  4. Step 4: Simplify right side
    1,786,788.51x = 2,394,195,694,576.67
  5. Step 5: Solve for x
    x = 2,394,195,694,576.67/1,786,788.51
  6. Step 6: Final answer
    x = 1,339,943.53

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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.