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Finding the Fourth Proportional to 976.88, 1,465.01 and 537.96

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Solution

The fourth proportional to 976.88, 1,465.01 and 537.96 is: 806.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.88 : 1,465.01 = 537.96 : x
  2. Step 2: Convert to fraction form
    976.88/1,465.01 = 537.96/x
  3. Step 3: Cross multiply
    976.88x = 1,465.01 × 537.96
  4. Step 4: Simplify right side
    976.88x = 788,114.09
  5. Step 5: Solve for x
    x = 788,114.09/976.88
  6. Step 6: Final answer
    x = 806.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.