Home / 1,981,680-2,735,227.20-1,207,835.52

Finding the Fourth Proportional to 1,981,680, 2,735,227.20 and 1,207,835.52

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Solution

The fourth proportional to 1,981,680, 2,735,227.20 and 1,207,835.52 is: 1,667,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,680 : 2,735,227.20 = 1,207,835.52 : x
  2. Step 2: Convert to fraction form
    1,981,680/2,735,227.20 = 1,207,835.52/x
  3. Step 3: Cross multiply
    1,981,680x = 2,735,227.20 × 1,207,835.52
  4. Step 4: Simplify right side
    1,981,680x = 3,303,704,567,430.14
  5. Step 5: Solve for x
    x = 3,303,704,567,430.14/1,981,680
  6. Step 6: Final answer
    x = 1,667,123.13

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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.