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Finding the Third Proportional to 457,674 and 991,596

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Solution

The third proportional to 457,674 and 991,596 is: 2,148,390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,674 : 991,596 = 991,596 : x
  2. Step 2: Convert to fraction form
    457,674/991,596 = 991,596/x
  3. Step 3: Cross multiply
    457,674x = 991,596 × 991,596
  4. Step 4: Simplify right side
    457,674x = 983,262,627,216
  5. Step 5: Solve for x
    x = 983,262,627,216/457,674
  6. Step 6: Final answer
    x = 2,148,390.84

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.