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Finding the Fourth Proportional to 449,400.96, 620,110.08 and 258,344.64

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Solution

The fourth proportional to 449,400.96, 620,110.08 and 258,344.64 is: 356,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,400.96 : 620,110.08 = 258,344.64 : x
  2. Step 2: Convert to fraction form
    449,400.96/620,110.08 = 258,344.64/x
  3. Step 3: Cross multiply
    449,400.96x = 620,110.08 × 258,344.64
  4. Step 4: Simplify right side
    449,400.96x = 160,202,115,377.97
  5. Step 5: Solve for x
    x = 160,202,115,377.97/449,400.96
  6. Step 6: Final answer
    x = 356,479.25

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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.