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Finding the Fourth Proportional to 449,792.60, 620,736.90 and 258,834.56

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Solution

The fourth proportional to 449,792.60, 620,736.90 and 258,834.56 is: 357,204.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,792.60 : 620,736.90 = 258,834.56 : x
  2. Step 2: Convert to fraction form
    449,792.60/620,736.90 = 258,834.56/x
  3. Step 3: Cross multiply
    449,792.60x = 620,736.90 × 258,834.56
  4. Step 4: Simplify right side
    449,792.60x = 160,668,162,387.26
  5. Step 5: Solve for x
    x = 160,668,162,387.26/449,792.60
  6. Step 6: Final answer
    x = 357,204.99

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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.