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Finding the Fourth Proportional to 526,940.72, 727,180.01 and 285,223.22

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Solution

The fourth proportional to 526,940.72, 727,180.01 and 285,223.22 is: 393,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,940.72 : 727,180.01 = 285,223.22 : x
  2. Step 2: Convert to fraction form
    526,940.72/727,180.01 = 285,223.22/x
  3. Step 3: Cross multiply
    526,940.72x = 727,180.01 × 285,223.22
  4. Step 4: Simplify right side
    526,940.72x = 207,408,626,796.72
  5. Step 5: Solve for x
    x = 207,408,626,796.72/526,940.72
  6. Step 6: Final answer
    x = 393,609.03

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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.