Home / 1,791,929.68-2,686,542.78-1,081,788.80

Finding the Fourth Proportional to 1,791,929.68, 2,686,542.78 and 1,081,788.80

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Solution

The fourth proportional to 1,791,929.68, 2,686,542.78 and 1,081,788.80 is: 1,621,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,929.68 : 2,686,542.78 = 1,081,788.80 : x
  2. Step 2: Convert to fraction form
    1,791,929.68/2,686,542.78 = 1,081,788.80/x
  3. Step 3: Cross multiply
    1,791,929.68x = 2,686,542.78 × 1,081,788.80
  4. Step 4: Simplify right side
    1,791,929.68x = 2,906,271,890,124.86
  5. Step 5: Solve for x
    x = 2,906,271,890,124.86/1,791,929.68
  6. Step 6: Final answer
    x = 1,621,867.15

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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.