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Finding the Third Proportional to 417,640 and 632,292

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Solution

The third proportional to 417,640 and 632,292 is: 957,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,640 : 632,292 = 632,292 : x
  2. Step 2: Convert to fraction form
    417,640/632,292 = 632,292/x
  3. Step 3: Cross multiply
    417,640x = 632,292 × 632,292
  4. Step 4: Simplify right side
    417,640x = 399,793,173,264
  5. Step 5: Solve for x
    x = 399,793,173,264/417,640
  6. Step 6: Final answer
    x = 957,267.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.