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Finding the Third Proportional to 328,090 and 506,674

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Solution

The third proportional to 328,090 and 506,674 is: 782,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,090 : 506,674 = 506,674 : x
  2. Step 2: Convert to fraction form
    328,090/506,674 = 506,674/x
  3. Step 3: Cross multiply
    328,090x = 506,674 × 506,674
  4. Step 4: Simplify right side
    328,090x = 256,718,542,276
  5. Step 5: Solve for x
    x = 256,718,542,276/328,090
  6. Step 6: Final answer
    x = 782,463.78

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.