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Finding the Fourth Proportional to 449,484.80, 620,291.12 and 245,538.56

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Solution

The fourth proportional to 449,484.80, 620,291.12 and 245,538.56 is: 338,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,484.80 : 620,291.12 = 245,538.56 : x
  2. Step 2: Convert to fraction form
    449,484.80/620,291.12 = 245,538.56/x
  3. Step 3: Cross multiply
    449,484.80x = 620,291.12 × 245,538.56
  4. Step 4: Simplify right side
    449,484.80x = 152,305,388,385.59
  5. Step 5: Solve for x
    x = 152,305,388,385.59/449,484.80
  6. Step 6: Final answer
    x = 338,844.36

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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.