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Finding the Third Proportional to 423,424 and 658,464

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Solution

The third proportional to 423,424 and 658,464 is: 1,023,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,424 : 658,464 = 658,464 : x
  2. Step 2: Convert to fraction form
    423,424/658,464 = 658,464/x
  3. Step 3: Cross multiply
    423,424x = 658,464 × 658,464
  4. Step 4: Simplify right side
    423,424x = 433,574,839,296
  5. Step 5: Solve for x
    x = 433,574,839,296/423,424
  6. Step 6: Final answer
    x = 1,023,973.23

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.