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Finding the Fourth Proportional to 449,858.39, 620,402.43 and 373,256.19

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Solution

The fourth proportional to 449,858.39, 620,402.43 and 373,256.19 is: 514,759.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,858.39 : 620,402.43 = 373,256.19 : x
  2. Step 2: Convert to fraction form
    449,858.39/620,402.43 = 373,256.19/x
  3. Step 3: Cross multiply
    449,858.39x = 620,402.43 × 373,256.19
  4. Step 4: Simplify right side
    449,858.39x = 231,569,047,288.54
  5. Step 5: Solve for x
    x = 231,569,047,288.54/449,858.39
  6. Step 6: Final answer
    x = 514,759.88

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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.