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Finding the Fourth Proportional to 449,041.22, 619,676.88 and 306,051.06

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Solution

The fourth proportional to 449,041.22, 619,676.88 and 306,051.06 is: 422,350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,041.22 : 619,676.88 = 306,051.06 : x
  2. Step 2: Convert to fraction form
    449,041.22/619,676.88 = 306,051.06/x
  3. Step 3: Cross multiply
    449,041.22x = 619,676.88 × 306,051.06
  4. Step 4: Simplify right side
    449,041.22x = 189,652,765,393.44
  5. Step 5: Solve for x
    x = 189,652,765,393.44/449,041.22
  6. Step 6: Final answer
    x = 422,350.46

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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.