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Finding the Fourth Proportional to 571.02, 786.93 and 524.46

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Solution

The fourth proportional to 571.02, 786.93 and 524.46 is: 722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.02 : 786.93 = 524.46 : x
  2. Step 2: Convert to fraction form
    571.02/786.93 = 524.46/x
  3. Step 3: Cross multiply
    571.02x = 786.93 × 524.46
  4. Step 4: Simplify right side
    571.02x = 412,713.31
  5. Step 5: Solve for x
    x = 412,713.31/571.02
  6. Step 6: Final answer
    x = 722.77

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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.