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Finding the Fourth Proportional to 705, 973.31 and 484.27

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Solution

The fourth proportional to 705, 973.31 and 484.27 is: 668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    705 : 973.31 = 484.27 : x
  2. Step 2: Convert to fraction form
    705/973.31 = 484.27/x
  3. Step 3: Cross multiply
    705x = 973.31 × 484.27
  4. Step 4: Simplify right side
    705x = 471,344.83
  5. Step 5: Solve for x
    x = 471,344.83/705
  6. Step 6: Final answer
    x = 668.57

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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.