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Finding the Third Proportional to 315,130.50 and 674,559

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Solution

The third proportional to 315,130.50 and 674,559 is: 1,443,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,130.50 : 674,559 = 674,559 : x
  2. Step 2: Convert to fraction form
    315,130.50/674,559 = 674,559/x
  3. Step 3: Cross multiply
    315,130.50x = 674,559 × 674,559
  4. Step 4: Simplify right side
    315,130.50x = 455,029,844,481
  5. Step 5: Solve for x
    x = 455,029,844,481/315,130.50
  6. Step 6: Final answer
    x = 1,443,940.98

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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.