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Finding the Fourth Proportional to 449,077.32, 619,511.86 and 303,933.96

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Solution

The fourth proportional to 449,077.32, 619,511.86 and 303,933.96 is: 419,283.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,077.32 : 619,511.86 = 303,933.96 : x
  2. Step 2: Convert to fraction form
    449,077.32/619,511.86 = 303,933.96/x
  3. Step 3: Cross multiply
    449,077.32x = 619,511.86 × 303,933.96
  4. Step 4: Simplify right side
    449,077.32x = 188,290,692,876.77
  5. Step 5: Solve for x
    x = 188,290,692,876.77/449,077.32
  6. Step 6: Final answer
    x = 419,283.46

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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.