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Finding the Fourth Proportional to 449,616.18, 620,463.06 and 245,662.74

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Solution

The fourth proportional to 449,616.18, 620,463.06 and 245,662.74 is: 339,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,616.18 : 620,463.06 = 245,662.74 : x
  2. Step 2: Convert to fraction form
    449,616.18/620,463.06 = 245,662.74/x
  3. Step 3: Cross multiply
    449,616.18x = 620,463.06 × 245,662.74
  4. Step 4: Simplify right side
    449,616.18x = 152,424,655,388.38
  5. Step 5: Solve for x
    x = 152,424,655,388.38/449,616.18
  6. Step 6: Final answer
    x = 339,010.61

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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.