Home / 1,435,789.61-1,981,364.11-782,421.33

Finding the Fourth Proportional to 1,435,789.61, 1,981,364.11 and 782,421.33

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Solution

The fourth proportional to 1,435,789.61, 1,981,364.11 and 782,421.33 is: 1,079,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,789.61 : 1,981,364.11 = 782,421.33 : x
  2. Step 2: Convert to fraction form
    1,435,789.61/1,981,364.11 = 782,421.33/x
  3. Step 3: Cross multiply
    1,435,789.61x = 1,981,364.11 × 782,421.33
  4. Step 4: Simplify right side
    1,435,789.61x = 1,550,261,540,204.41
  5. Step 5: Solve for x
    x = 1,550,261,540,204.41/1,435,789.61
  6. Step 6: Final answer
    x = 1,079,727.51

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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.