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Finding the Third Proportional to 454,490 and 672,987

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Solution

The third proportional to 454,490 and 672,987 is: 996,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,490 : 672,987 = 672,987 : x
  2. Step 2: Convert to fraction form
    454,490/672,987 = 672,987/x
  3. Step 3: Cross multiply
    454,490x = 672,987 × 672,987
  4. Step 4: Simplify right side
    454,490x = 452,911,502,169
  5. Step 5: Solve for x
    x = 452,911,502,169/454,490
  6. Step 6: Final answer
    x = 996,526.88

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.