Home / 557,514.08-769,344.78-315,791.79

Finding the Fourth Proportional to 557,514.08, 769,344.78 and 315,791.79

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Solution

The fourth proportional to 557,514.08, 769,344.78 and 315,791.79 is: 435,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,514.08 : 769,344.78 = 315,791.79 : x
  2. Step 2: Convert to fraction form
    557,514.08/769,344.78 = 315,791.79/x
  3. Step 3: Cross multiply
    557,514.08x = 769,344.78 × 315,791.79
  4. Step 4: Simplify right side
    557,514.08x = 242,952,765,203.36
  5. Step 5: Solve for x
    x = 242,952,765,203.36/557,514.08
  6. Step 6: Final answer
    x = 435,778.71

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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.