Home / 1,993,436.35-2,990,447.96-645,150.85

Finding the Fourth Proportional to 1,993,436.35, 2,990,447.96 and 645,150.85

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Solution

The fourth proportional to 1,993,436.35, 2,990,447.96 and 645,150.85 is: 967,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,436.35 : 2,990,447.96 = 645,150.85 : x
  2. Step 2: Convert to fraction form
    1,993,436.35/2,990,447.96 = 645,150.85/x
  3. Step 3: Cross multiply
    1,993,436.35x = 2,990,447.96 × 645,150.85
  4. Step 4: Simplify right side
    1,993,436.35x = 1,929,290,032,572.89
  5. Step 5: Solve for x
    x = 1,929,290,032,572.89/1,993,436.35
  6. Step 6: Final answer
    x = 967,821.24

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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.