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Finding the Fourth Proportional to 449,561.64, 620,370.18 and 258,578.24

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Solution

The fourth proportional to 449,561.64, 620,370.18 and 258,578.24 is: 356,823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,561.64 : 620,370.18 = 258,578.24 : x
  2. Step 2: Convert to fraction form
    449,561.64/620,370.18 = 258,578.24/x
  3. Step 3: Cross multiply
    449,561.64x = 620,370.18 × 258,578.24
  4. Step 4: Simplify right side
    449,561.64x = 160,414,229,292.88
  5. Step 5: Solve for x
    x = 160,414,229,292.88/449,561.64
  6. Step 6: Final answer
    x = 356,823.66

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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.