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Finding the Third Proportional to 342,288 and 706,392

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Solution

The third proportional to 342,288 and 706,392 is: 1,457,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,288 : 706,392 = 706,392 : x
  2. Step 2: Convert to fraction form
    342,288/706,392 = 706,392/x
  3. Step 3: Cross multiply
    342,288x = 706,392 × 706,392
  4. Step 4: Simplify right side
    342,288x = 498,989,657,664
  5. Step 5: Solve for x
    x = 498,989,657,664/342,288
  6. Step 6: Final answer
    x = 1,457,806.46

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.