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Finding the Fourth Proportional to 449,015.44, 619,640.04 and 247,810

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Solution

The fourth proportional to 449,015.44, 619,640.04 and 247,810 is: 341,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,015.44 : 619,640.04 = 247,810 : x
  2. Step 2: Convert to fraction form
    449,015.44/619,640.04 = 247,810/x
  3. Step 3: Cross multiply
    449,015.44x = 619,640.04 × 247,810
  4. Step 4: Simplify right side
    449,015.44x = 153,552,998,312.40
  5. Step 5: Solve for x
    x = 153,552,998,312.40/449,015.44
  6. Step 6: Final answer
    x = 341,977.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.