Home / 1,990,388.70-2,985,583.05-494,480.70

Finding the Fourth Proportional to 1,990,388.70, 2,985,583.05 and 494,480.70

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Solution

The fourth proportional to 1,990,388.70, 2,985,583.05 and 494,480.70 is: 741,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,388.70 : 2,985,583.05 = 494,480.70 : x
  2. Step 2: Convert to fraction form
    1,990,388.70/2,985,583.05 = 494,480.70/x
  3. Step 3: Cross multiply
    1,990,388.70x = 2,985,583.05 × 494,480.70
  4. Step 4: Simplify right side
    1,990,388.70x = 1,476,313,196,472.14
  5. Step 5: Solve for x
    x = 1,476,313,196,472.14/1,990,388.70
  6. Step 6: Final answer
    x = 741,721.05

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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.