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Finding the Fourth Proportional to 557.48, 837.36 and 539.03

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Solution

The fourth proportional to 557.48, 837.36 and 539.03 is: 809.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.48 : 837.36 = 539.03 : x
  2. Step 2: Convert to fraction form
    557.48/837.36 = 539.03/x
  3. Step 3: Cross multiply
    557.48x = 837.36 × 539.03
  4. Step 4: Simplify right side
    557.48x = 451,357.97
  5. Step 5: Solve for x
    x = 451,357.97/557.48
  6. Step 6: Final answer
    x = 809.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.