Home / 449,979.84-621,110.70-259,120.62

Finding the Fourth Proportional to 449,979.84, 621,110.70 and 259,120.62

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Solution

The fourth proportional to 449,979.84, 621,110.70 and 259,120.62 is: 357,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,979.84 : 621,110.70 = 259,120.62 : x
  2. Step 2: Convert to fraction form
    449,979.84/621,110.70 = 259,120.62/x
  3. Step 3: Cross multiply
    449,979.84x = 621,110.70 × 259,120.62
  4. Step 4: Simplify right side
    449,979.84x = 160,942,589,672.63
  5. Step 5: Solve for x
    x = 160,942,589,672.63/449,979.84
  6. Step 6: Final answer
    x = 357,666.22

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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.