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Finding the Third Proportional to 520,617.50 and 804,521.75

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Solution

The third proportional to 520,617.50 and 804,521.75 is: 1,243,245.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,617.50 : 804,521.75 = 804,521.75 : x
  2. Step 2: Convert to fraction form
    520,617.50/804,521.75 = 804,521.75/x
  3. Step 3: Cross multiply
    520,617.50x = 804,521.75 × 804,521.75
  4. Step 4: Simplify right side
    520,617.50x = 647,255,246,223.06
  5. Step 5: Solve for x
    x = 647,255,246,223.06/520,617.50
  6. Step 6: Final answer
    x = 1,243,245.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.