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Finding the Third Proportional to 328,090 and 506,127

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Solution

The third proportional to 328,090 and 506,127 is: 780,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,090 : 506,127 = 506,127 : x
  2. Step 2: Convert to fraction form
    328,090/506,127 = 506,127/x
  3. Step 3: Cross multiply
    328,090x = 506,127 × 506,127
  4. Step 4: Simplify right side
    328,090x = 256,164,540,129
  5. Step 5: Solve for x
    x = 256,164,540,129/328,090
  6. Step 6: Final answer
    x = 780,775.21

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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.