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Finding the Fourth Proportional to 449,825.92, 620,748.96 and 245,867.68

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Solution

The fourth proportional to 449,825.92, 620,748.96 and 245,867.68 is: 339,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,825.92 : 620,748.96 = 245,867.68 : x
  2. Step 2: Convert to fraction form
    449,825.92/620,748.96 = 245,867.68/x
  3. Step 3: Cross multiply
    449,825.92x = 620,748.96 × 245,867.68
  4. Step 4: Simplify right side
    449,825.92x = 152,622,106,657.61
  5. Step 5: Solve for x
    x = 152,622,106,657.61/449,825.92
  6. Step 6: Final answer
    x = 339,291.49

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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.