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Finding the Fourth Proportional to 2,672,625, 4,008,859.74 and 989,691.24

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Solution

The fourth proportional to 2,672,625, 4,008,859.74 and 989,691.24 is: 1,484,508.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,625 : 4,008,859.74 = 989,691.24 : x
  2. Step 2: Convert to fraction form
    2,672,625/4,008,859.74 = 989,691.24/x
  3. Step 3: Cross multiply
    2,672,625x = 4,008,859.74 × 989,691.24
  4. Step 4: Simplify right side
    2,672,625x = 3,967,533,367,066.68
  5. Step 5: Solve for x
    x = 3,967,533,367,066.68/2,672,625
  6. Step 6: Final answer
    x = 1,484,508.06

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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.