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Finding the Third Proportional to 439,688 and 958,108

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Solution

The third proportional to 439,688 and 958,108 is: 2,087,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,688 : 958,108 = 958,108 : x
  2. Step 2: Convert to fraction form
    439,688/958,108 = 958,108/x
  3. Step 3: Cross multiply
    439,688x = 958,108 × 958,108
  4. Step 4: Simplify right side
    439,688x = 917,970,939,664
  5. Step 5: Solve for x
    x = 917,970,939,664/439,688
  6. Step 6: Final answer
    x = 2,087,778.01

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.