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Finding the Fourth Proportional to 450,998.65, 622,388.19 and 257,402.49

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Solution

The fourth proportional to 450,998.65, 622,388.19 and 257,402.49 is: 355,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,998.65 : 622,388.19 = 257,402.49 : x
  2. Step 2: Convert to fraction form
    450,998.65/622,388.19 = 257,402.49/x
  3. Step 3: Cross multiply
    450,998.65x = 622,388.19 × 257,402.49
  4. Step 4: Simplify right side
    450,998.65x = 160,204,269,852.59
  5. Step 5: Solve for x
    x = 160,204,269,852.59/450,998.65
  6. Step 6: Final answer
    x = 355,221.17

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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.