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Finding the Fourth Proportional to 487,851.91, 673,203.11 and 270,045.85

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Solution

The fourth proportional to 487,851.91, 673,203.11 and 270,045.85 is: 372,645.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,851.91 : 673,203.11 = 270,045.85 : x
  2. Step 2: Convert to fraction form
    487,851.91/673,203.11 = 270,045.85/x
  3. Step 3: Cross multiply
    487,851.91x = 673,203.11 × 270,045.85
  4. Step 4: Simplify right side
    487,851.91x = 181,795,702,273.44
  5. Step 5: Solve for x
    x = 181,795,702,273.44/487,851.91
  6. Step 6: Final answer
    x = 372,645.26

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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.