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Finding the Third Proportional to 517,021.50 and 776,079

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Solution

The third proportional to 517,021.50 and 776,079 is: 1,164,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,021.50 : 776,079 = 776,079 : x
  2. Step 2: Convert to fraction form
    517,021.50/776,079 = 776,079/x
  3. Step 3: Cross multiply
    517,021.50x = 776,079 × 776,079
  4. Step 4: Simplify right side
    517,021.50x = 602,298,614,241
  5. Step 5: Solve for x
    x = 602,298,614,241/517,021.50
  6. Step 6: Final answer
    x = 1,164,939.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.