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Finding the Fourth Proportional to 557,460.56, 769,403.39 and 363,531.57

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Solution

The fourth proportional to 557,460.56, 769,403.39 and 363,531.57 is: 501,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,460.56 : 769,403.39 = 363,531.57 : x
  2. Step 2: Convert to fraction form
    557,460.56/769,403.39 = 363,531.57/x
  3. Step 3: Cross multiply
    557,460.56x = 769,403.39 × 363,531.57
  4. Step 4: Simplify right side
    557,460.56x = 279,702,420,512.36
  5. Step 5: Solve for x
    x = 279,702,420,512.36/557,460.56
  6. Step 6: Final answer
    x = 501,743.88

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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.