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Finding the Third Proportional to 310,454 and 474,591

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Solution

The third proportional to 310,454 and 474,591 is: 725,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,454 : 474,591 = 474,591 : x
  2. Step 2: Convert to fraction form
    310,454/474,591 = 474,591/x
  3. Step 3: Cross multiply
    310,454x = 474,591 × 474,591
  4. Step 4: Simplify right side
    310,454x = 225,236,617,281
  5. Step 5: Solve for x
    x = 225,236,617,281/310,454
  6. Step 6: Final answer
    x = 725,507.22

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.