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Finding the Fourth Proportional to 449,546.64, 620,349.48 and 258,563.22

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Solution

The fourth proportional to 449,546.64, 620,349.48 and 258,563.22 is: 356,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,546.64 : 620,349.48 = 258,563.22 : x
  2. Step 2: Convert to fraction form
    449,546.64/620,349.48 = 258,563.22/x
  3. Step 3: Cross multiply
    449,546.64x = 620,349.48 × 258,563.22
  4. Step 4: Simplify right side
    449,546.64x = 160,399,559,074.13
  5. Step 5: Solve for x
    x = 160,399,559,074.13/449,546.64
  6. Step 6: Final answer
    x = 356,802.93

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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.