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Finding the Fourth Proportional to 1,006.27, 1,510.09 and 486.86

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Solution

The fourth proportional to 1,006.27, 1,510.09 and 486.86 is: 730.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006.27 : 1,510.09 = 486.86 : x
  2. Step 2: Convert to fraction form
    1,006.27/1,510.09 = 486.86/x
  3. Step 3: Cross multiply
    1,006.27x = 1,510.09 × 486.86
  4. Step 4: Simplify right side
    1,006.27x = 735,204.88
  5. Step 5: Solve for x
    x = 735,204.88/1,006.27
  6. Step 6: Final answer
    x = 730.62

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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.