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Finding the Fourth Proportional to 557,649.82, 769,563.75 and 303,005.26

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Solution

The fourth proportional to 557,649.82, 769,563.75 and 303,005.26 is: 418,151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,649.82 : 769,563.75 = 303,005.26 : x
  2. Step 2: Convert to fraction form
    557,649.82/769,563.75 = 303,005.26/x
  3. Step 3: Cross multiply
    557,649.82x = 769,563.75 × 303,005.26
  4. Step 4: Simplify right side
    557,649.82x = 233,181,864,155.33
  5. Step 5: Solve for x
    x = 233,181,864,155.33/557,649.82
  6. Step 6: Final answer
    x = 418,151.06

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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.