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Finding the Third Proportional to 455,031 and 999,492

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Solution

The third proportional to 455,031 and 999,492 is: 2,195,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,031 : 999,492 = 999,492 : x
  2. Step 2: Convert to fraction form
    455,031/999,492 = 999,492/x
  3. Step 3: Cross multiply
    455,031x = 999,492 × 999,492
  4. Step 4: Simplify right side
    455,031x = 998,984,258,064
  5. Step 5: Solve for x
    x = 998,984,258,064/455,031
  6. Step 6: Final answer
    x = 2,195,420.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.