Home / 1,435,783.09-1,981,355.13-782,414.80

Finding the Fourth Proportional to 1,435,783.09, 1,981,355.13 and 782,414.80

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Solution

The fourth proportional to 1,435,783.09, 1,981,355.13 and 782,414.80 is: 1,079,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,783.09 : 1,981,355.13 = 782,414.80 : x
  2. Step 2: Convert to fraction form
    1,435,783.09/1,981,355.13 = 782,414.80/x
  3. Step 3: Cross multiply
    1,435,783.09x = 1,981,355.13 × 782,414.80
  4. Step 4: Simplify right side
    1,435,783.09x = 1,550,241,577,767.92
  5. Step 5: Solve for x
    x = 1,550,241,577,767.92/1,435,783.09
  6. Step 6: Final answer
    x = 1,079,718.51

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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.