Home / 3,619,778.42-4,995,334.90-1,988,223.57

Finding the Fourth Proportional to 3,619,778.42, 4,995,334.90 and 1,988,223.57

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Solution

The fourth proportional to 3,619,778.42, 4,995,334.90 and 1,988,223.57 is: 2,743,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619,778.42 : 4,995,334.90 = 1,988,223.57 : x
  2. Step 2: Convert to fraction form
    3,619,778.42/4,995,334.90 = 1,988,223.57/x
  3. Step 3: Cross multiply
    3,619,778.42x = 4,995,334.90 × 1,988,223.57
  4. Step 4: Simplify right side
    3,619,778.42x = 9,931,842,590,708.87
  5. Step 5: Solve for x
    x = 9,931,842,590,708.87/3,619,778.42
  6. Step 6: Final answer
    x = 2,743,770.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.