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Finding the Third Proportional to 391,354.50 and 847,468.50

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Solution

The third proportional to 391,354.50 and 847,468.50 is: 1,835,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,354.50 : 847,468.50 = 847,468.50 : x
  2. Step 2: Convert to fraction form
    391,354.50/847,468.50 = 847,468.50/x
  3. Step 3: Cross multiply
    391,354.50x = 847,468.50 × 847,468.50
  4. Step 4: Simplify right side
    391,354.50x = 718,202,858,492.25
  5. Step 5: Solve for x
    x = 718,202,858,492.25/391,354.50
  6. Step 6: Final answer
    x = 1,835,172.10

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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.