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Finding the Third Proportional to 315,220.50 and 674,721

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Solution

The third proportional to 315,220.50 and 674,721 is: 1,444,222.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,220.50 : 674,721 = 674,721 : x
  2. Step 2: Convert to fraction form
    315,220.50/674,721 = 674,721/x
  3. Step 3: Cross multiply
    315,220.50x = 674,721 × 674,721
  4. Step 4: Simplify right side
    315,220.50x = 455,248,427,841
  5. Step 5: Solve for x
    x = 455,248,427,841/315,220.50
  6. Step 6: Final answer
    x = 1,444,222.15

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.