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Finding the Third Proportional to 387,840 and 568,992

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Solution

The third proportional to 387,840 and 568,992 is: 834,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,840 : 568,992 = 568,992 : x
  2. Step 2: Convert to fraction form
    387,840/568,992 = 568,992/x
  3. Step 3: Cross multiply
    387,840x = 568,992 × 568,992
  4. Step 4: Simplify right side
    387,840x = 323,751,896,064
  5. Step 5: Solve for x
    x = 323,751,896,064/387,840
  6. Step 6: Final answer
    x = 834,756.33

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.