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Finding the Fourth Proportional to 449,773.20, 620,685.54 and 245,824.11

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Solution

The fourth proportional to 449,773.20, 620,685.54 and 245,824.11 is: 339,236.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,773.20 : 620,685.54 = 245,824.11 : x
  2. Step 2: Convert to fraction form
    449,773.20/620,685.54 = 245,824.11/x
  3. Step 3: Cross multiply
    449,773.20x = 620,685.54 × 245,824.11
  4. Step 4: Simplify right side
    449,773.20x = 152,579,470,460.37
  5. Step 5: Solve for x
    x = 152,579,470,460.37/449,773.20
  6. Step 6: Final answer
    x = 339,236.47

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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.