Home / 1,993,191.71-2,990,262.70-645,354.69

Finding the Fourth Proportional to 1,993,191.71, 2,990,262.70 and 645,354.69

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Solution

The fourth proportional to 1,993,191.71, 2,990,262.70 and 645,354.69 is: 968,185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,191.71 : 2,990,262.70 = 645,354.69 : x
  2. Step 2: Convert to fraction form
    1,993,191.71/2,990,262.70 = 645,354.69/x
  3. Step 3: Cross multiply
    1,993,191.71x = 2,990,262.70 × 645,354.69
  4. Step 4: Simplify right side
    1,993,191.71x = 1,929,780,062,375.44
  5. Step 5: Solve for x
    x = 1,929,780,062,375.44/1,993,191.71
  6. Step 6: Final answer
    x = 968,185.88

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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.