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Finding the Fourth Proportional to 449,570.82, 620,408.26 and 245,625.18

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Solution

The fourth proportional to 449,570.82, 620,408.26 and 245,625.18 is: 338,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,570.82 : 620,408.26 = 245,625.18 : x
  2. Step 2: Convert to fraction form
    449,570.82/620,408.26 = 245,625.18/x
  3. Step 3: Cross multiply
    449,570.82x = 620,408.26 × 245,625.18
  4. Step 4: Simplify right side
    449,570.82x = 152,387,888,516.49
  5. Step 5: Solve for x
    x = 152,387,888,516.49/449,570.82
  6. Step 6: Final answer
    x = 338,963.03

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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.