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Finding the Third Proportional to 301,230 and 642,492

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Solution

The third proportional to 301,230 and 642,492 is: 1,370,368.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,230 : 642,492 = 642,492 : x
  2. Step 2: Convert to fraction form
    301,230/642,492 = 642,492/x
  3. Step 3: Cross multiply
    301,230x = 642,492 × 642,492
  4. Step 4: Simplify right side
    301,230x = 412,795,970,064
  5. Step 5: Solve for x
    x = 412,795,970,064/301,230
  6. Step 6: Final answer
    x = 1,370,368.06

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.