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Finding the Fourth Proportional to 557,461.56, 769,404.77 and 363,532.57

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Solution

The fourth proportional to 557,461.56, 769,404.77 and 363,532.57 is: 501,745.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,461.56 : 769,404.77 = 363,532.57 : x
  2. Step 2: Convert to fraction form
    557,461.56/769,404.77 = 363,532.57/x
  3. Step 3: Cross multiply
    557,461.56x = 769,404.77 × 363,532.57
  4. Step 4: Simplify right side
    557,461.56x = 279,703,693,408.36
  5. Step 5: Solve for x
    x = 279,703,693,408.36/557,461.56
  6. Step 6: Final answer
    x = 501,745.26

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1.5x scale

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.