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Finding the Third Proportional to 621,707.50 and 988,610.50

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Solution

The third proportional to 621,707.50 and 988,610.50 is: 1,572,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,707.50 : 988,610.50 = 988,610.50 : x
  2. Step 2: Convert to fraction form
    621,707.50/988,610.50 = 988,610.50/x
  3. Step 3: Cross multiply
    621,707.50x = 988,610.50 × 988,610.50
  4. Step 4: Simplify right side
    621,707.50x = 977,350,720,710.25
  5. Step 5: Solve for x
    x = 977,350,720,710.25/621,707.50
  6. Step 6: Final answer
    x = 1,572,042.67

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.