Home / 449,905.26-620,839.71-258,887.82

Finding the Fourth Proportional to 449,905.26, 620,839.71 and 258,887.82

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Solution

The fourth proportional to 449,905.26, 620,839.71 and 258,887.82 is: 357,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,905.26 : 620,839.71 = 258,887.82 : x
  2. Step 2: Convert to fraction form
    449,905.26/620,839.71 = 258,887.82/x
  3. Step 3: Cross multiply
    449,905.26x = 620,839.71 × 258,887.82
  4. Step 4: Simplify right side
    449,905.26x = 160,727,839,091.33
  5. Step 5: Solve for x
    x = 160,727,839,091.33/449,905.26
  6. Step 6: Final answer
    x = 357,248.19

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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.