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Finding the Fourth Proportional to 449,871.57, 620,828.55 and 245,919.24

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Solution

The fourth proportional to 449,871.57, 620,828.55 and 245,919.24 is: 339,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,871.57 : 620,828.55 = 245,919.24 : x
  2. Step 2: Convert to fraction form
    449,871.57/620,828.55 = 245,919.24/x
  3. Step 3: Cross multiply
    449,871.57x = 620,828.55 × 245,919.24
  4. Step 4: Simplify right side
    449,871.57x = 152,673,685,186.30
  5. Step 5: Solve for x
    x = 152,673,685,186.30/449,871.57
  6. Step 6: Final answer
    x = 339,371.71

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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.