Home / 1,993,468.80-2,990,496.60-645,183.30

Finding the Fourth Proportional to 1,993,468.80, 2,990,496.60 and 645,183.30

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Solution

The fourth proportional to 1,993,468.80, 2,990,496.60 and 645,183.30 is: 967,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,468.80 : 2,990,496.60 = 645,183.30 : x
  2. Step 2: Convert to fraction form
    1,993,468.80/2,990,496.60 = 645,183.30/x
  3. Step 3: Cross multiply
    1,993,468.80x = 2,990,496.60 × 645,183.30
  4. Step 4: Simplify right side
    1,993,468.80x = 1,929,418,465,026.78
  5. Step 5: Solve for x
    x = 1,929,418,465,026.78/1,993,468.80
  6. Step 6: Final answer
    x = 967,869.91

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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.