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Finding the Fourth Proportional to 511.03, 708.44 and 483.31

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Solution

The fourth proportional to 511.03, 708.44 and 483.31 is: 670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.03 : 708.44 = 483.31 : x
  2. Step 2: Convert to fraction form
    511.03/708.44 = 483.31/x
  3. Step 3: Cross multiply
    511.03x = 708.44 × 483.31
  4. Step 4: Simplify right side
    511.03x = 342,396.14
  5. Step 5: Solve for x
    x = 342,396.14/511.03
  6. Step 6: Final answer
    x = 670.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.