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Finding the Third Proportional to 292,396 and 440,754

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Solution

The third proportional to 292,396 and 440,754 is: 664,386.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,396 : 440,754 = 440,754 : x
  2. Step 2: Convert to fraction form
    292,396/440,754 = 440,754/x
  3. Step 3: Cross multiply
    292,396x = 440,754 × 440,754
  4. Step 4: Simplify right side
    292,396x = 194,264,088,516
  5. Step 5: Solve for x
    x = 194,264,088,516/292,396
  6. Step 6: Final answer
    x = 664,386.96

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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.