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Finding the Third Proportional to 288,702 and 424,305

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Solution

The third proportional to 288,702 and 424,305 is: 623,600.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,702 : 424,305 = 424,305 : x
  2. Step 2: Convert to fraction form
    288,702/424,305 = 424,305/x
  3. Step 3: Cross multiply
    288,702x = 424,305 × 424,305
  4. Step 4: Simplify right side
    288,702x = 180,034,733,025
  5. Step 5: Solve for x
    x = 180,034,733,025/288,702
  6. Step 6: Final answer
    x = 623,600.57

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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.