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Finding the Fourth Proportional to 610.08, 911.14 and 528

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Solution

The fourth proportional to 610.08, 911.14 and 528 is: 788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.08 : 911.14 = 528 : x
  2. Step 2: Convert to fraction form
    610.08/911.14 = 528/x
  3. Step 3: Cross multiply
    610.08x = 911.14 × 528
  4. Step 4: Simplify right side
    610.08x = 481,081.92
  5. Step 5: Solve for x
    x = 481,081.92/610.08
  6. Step 6: Final answer
    x = 788.56

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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.