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Finding the Fourth Proportional to 571.37, 852.45 and 543.83

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Solution

The fourth proportional to 571.37, 852.45 and 543.83 is: 811.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.37 : 852.45 = 543.83 : x
  2. Step 2: Convert to fraction form
    571.37/852.45 = 543.83/x
  3. Step 3: Cross multiply
    571.37x = 852.45 × 543.83
  4. Step 4: Simplify right side
    571.37x = 463,581.58
  5. Step 5: Solve for x
    x = 463,581.58/571.37
  6. Step 6: Final answer
    x = 811.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.