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Finding the Fourth Proportional to 619.51, 932.94 and 539.32

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Solution

The fourth proportional to 619.51, 932.94 and 539.32 is: 812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.51 : 932.94 = 539.32 : x
  2. Step 2: Convert to fraction form
    619.51/932.94 = 539.32/x
  3. Step 3: Cross multiply
    619.51x = 932.94 × 539.32
  4. Step 4: Simplify right side
    619.51x = 503,150.50
  5. Step 5: Solve for x
    x = 503,150.50/619.51
  6. Step 6: Final answer
    x = 812.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.