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Finding the Fourth Proportional to 449,701.30, 620,577.21 and 245,743.30

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Solution

The fourth proportional to 449,701.30, 620,577.21 and 245,743.30 is: 339,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,701.30 : 620,577.21 = 245,743.30 : x
  2. Step 2: Convert to fraction form
    449,701.30/620,577.21 = 245,743.30/x
  3. Step 3: Cross multiply
    449,701.30x = 620,577.21 × 245,743.30
  4. Step 4: Simplify right side
    449,701.30x = 152,502,691,490.19
  5. Step 5: Solve for x
    x = 152,502,691,490.19/449,701.30
  6. Step 6: Final answer
    x = 339,119.97

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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.