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Finding the Fourth Proportional to 449,733.72, 620,709.32 and 268,455

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Solution

The fourth proportional to 449,733.72, 620,709.32 and 268,455 is: 370,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,733.72 : 620,709.32 = 268,455 : x
  2. Step 2: Convert to fraction form
    449,733.72/620,709.32 = 268,455/x
  3. Step 3: Cross multiply
    449,733.72x = 620,709.32 × 268,455
  4. Step 4: Simplify right side
    449,733.72x = 166,632,520,500.60
  5. Step 5: Solve for x
    x = 166,632,520,500.60/449,733.72
  6. Step 6: Final answer
    x = 370,513.74

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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.