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Finding the Fourth Proportional to 557,710.72, 769,625.28 and 303,053.44

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Solution

The fourth proportional to 557,710.72, 769,625.28 and 303,053.44 is: 418,205.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,710.72 : 769,625.28 = 303,053.44 : x
  2. Step 2: Convert to fraction form
    557,710.72/769,625.28 = 303,053.44/x
  3. Step 3: Cross multiply
    557,710.72x = 769,625.28 × 303,053.44
  4. Step 4: Simplify right side
    557,710.72x = 233,237,588,614.96
  5. Step 5: Solve for x
    x = 233,237,588,614.96/557,710.72
  6. Step 6: Final answer
    x = 418,205.32

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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.