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Finding the Fourth Proportional to 672,375.60, 1,008,563.40 and 245,910.60

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Solution

The fourth proportional to 672,375.60, 1,008,563.40 and 245,910.60 is: 368,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,375.60 : 1,008,563.40 = 245,910.60 : x
  2. Step 2: Convert to fraction form
    672,375.60/1,008,563.40 = 245,910.60/x
  3. Step 3: Cross multiply
    672,375.60x = 1,008,563.40 × 245,910.60
  4. Step 4: Simplify right side
    672,375.60x = 248,016,430,832.04
  5. Step 5: Solve for x
    x = 248,016,430,832.04/672,375.60
  6. Step 6: Final answer
    x = 368,865.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.