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Finding the Third Proportional to 513,516 and 755,730

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Solution

The third proportional to 513,516 and 755,730 is: 1,112,190.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,516 : 755,730 = 755,730 : x
  2. Step 2: Convert to fraction form
    513,516/755,730 = 755,730/x
  3. Step 3: Cross multiply
    513,516x = 755,730 × 755,730
  4. Step 4: Simplify right side
    513,516x = 571,127,832,900
  5. Step 5: Solve for x
    x = 571,127,832,900/513,516
  6. Step 6: Final answer
    x = 1,112,190.92

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.