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Finding the Fourth Proportional to 2,633,000, 3,949,512.96 and 638,456

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Solution

The fourth proportional to 2,633,000, 3,949,512.96 and 638,456 is: 957,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,633,000 : 3,949,512.96 = 638,456 : x
  2. Step 2: Convert to fraction form
    2,633,000/3,949,512.96 = 638,456/x
  3. Step 3: Cross multiply
    2,633,000x = 3,949,512.96 × 638,456
  4. Step 4: Simplify right side
    2,633,000x = 2,521,590,246,389.76
  5. Step 5: Solve for x
    x = 2,521,590,246,389.76/2,633,000
  6. Step 6: Final answer
    x = 957,687.14

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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.