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Finding the Fourth Proportional to 457,556.75, 685,369.59 and 367,109.78

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Solution

The fourth proportional to 457,556.75, 685,369.59 and 367,109.78 is: 549,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,556.75 : 685,369.59 = 367,109.78 : x
  2. Step 2: Convert to fraction form
    457,556.75/685,369.59 = 367,109.78/x
  3. Step 3: Cross multiply
    457,556.75x = 685,369.59 × 367,109.78
  4. Step 4: Simplify right side
    457,556.75x = 251,605,878,546.88
  5. Step 5: Solve for x
    x = 251,605,878,546.88/457,556.75
  6. Step 6: Final answer
    x = 549,889.99

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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.