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Finding the Fourth Proportional to 449,526.25, 620,364.05 and 258,539.41

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Solution

The fourth proportional to 449,526.25, 620,364.05 and 258,539.41 is: 356,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,526.25 : 620,364.05 = 258,539.41 : x
  2. Step 2: Convert to fraction form
    449,526.25/620,364.05 = 258,539.41/x
  3. Step 3: Cross multiply
    449,526.25x = 620,364.05 × 258,539.41
  4. Step 4: Simplify right side
    449,526.25x = 160,388,555,472.21
  5. Step 5: Solve for x
    x = 160,388,555,472.21/449,526.25
  6. Step 6: Final answer
    x = 356,794.64

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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.