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Finding the Third Proportional to 502.88 and 783

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Solution

The third proportional to 502.88 and 783 is: 1,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.88 : 783 = 783 : x
  2. Step 2: Convert to fraction form
    502.88/783 = 783/x
  3. Step 3: Cross multiply
    502.88x = 783 × 783
  4. Step 4: Simplify right side
    502.88x = 613,089
  5. Step 5: Solve for x
    x = 613,089/502.88
  6. Step 6: Final answer
    x = 1,219.17

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.