Home / 382,911.13-574,721.32-193,504.78

Finding the Fourth Proportional to 382,911.13, 574,721.32 and 193,504.78

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Solution

The fourth proportional to 382,911.13, 574,721.32 and 193,504.78 is: 290,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,911.13 : 574,721.32 = 193,504.78 : x
  2. Step 2: Convert to fraction form
    382,911.13/574,721.32 = 193,504.78/x
  3. Step 3: Cross multiply
    382,911.13x = 574,721.32 × 193,504.78
  4. Step 4: Simplify right side
    382,911.13x = 111,211,322,587.91
  5. Step 5: Solve for x
    x = 111,211,322,587.91/382,911.13
  6. Step 6: Final answer
    x = 290,436.38

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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.