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Finding the Third Proportional to 398,588 and 592,203

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Solution

The third proportional to 398,588 and 592,203 is: 879,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,588 : 592,203 = 592,203 : x
  2. Step 2: Convert to fraction form
    398,588/592,203 = 592,203/x
  3. Step 3: Cross multiply
    398,588x = 592,203 × 592,203
  4. Step 4: Simplify right side
    398,588x = 350,704,393,209
  5. Step 5: Solve for x
    x = 350,704,393,209/398,588
  6. Step 6: Final answer
    x = 879,866.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.