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Finding the Fourth Proportional to 1,981,759.94, 2,971,910.77 and 684,582.32

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Solution

The fourth proportional to 1,981,759.94, 2,971,910.77 and 684,582.32 is: 1,026,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,759.94 : 2,971,910.77 = 684,582.32 : x
  2. Step 2: Convert to fraction form
    1,981,759.94/2,971,910.77 = 684,582.32/x
  3. Step 3: Cross multiply
    1,981,759.94x = 2,971,910.77 × 684,582.32
  4. Step 4: Simplify right side
    1,981,759.94x = 2,034,517,569,759.59
  5. Step 5: Solve for x
    x = 2,034,517,569,759.59/1,981,759.94
  6. Step 6: Final answer
    x = 1,026,621.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.