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Finding the Fourth Proportional to 449,538, 620,374.61 and 268,355.08

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Solution

The fourth proportional to 449,538, 620,374.61 and 268,355.08 is: 370,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,538 : 620,374.61 = 268,355.08 : x
  2. Step 2: Convert to fraction form
    449,538/620,374.61 = 268,355.08/x
  3. Step 3: Cross multiply
    449,538x = 620,374.61 × 268,355.08
  4. Step 4: Simplify right side
    449,538x = 166,480,678,096.52
  5. Step 5: Solve for x
    x = 166,480,678,096.52/449,538
  6. Step 6: Final answer
    x = 370,337.28

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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.