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Finding the Third Proportional to 315,130 and 674,557

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Solution

The third proportional to 315,130 and 674,557 is: 1,443,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,130 : 674,557 = 674,557 : x
  2. Step 2: Convert to fraction form
    315,130/674,557 = 674,557/x
  3. Step 3: Cross multiply
    315,130x = 674,557 × 674,557
  4. Step 4: Simplify right side
    315,130x = 455,027,146,249
  5. Step 5: Solve for x
    x = 455,027,146,249/315,130
  6. Step 6: Final answer
    x = 1,443,934.71

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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.