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Finding the Fourth Proportional to 1,000.16, 1,495.31 and 847.79

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Solution

The fourth proportional to 1,000.16, 1,495.31 and 847.79 is: 1,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000.16 : 1,495.31 = 847.79 : x
  2. Step 2: Convert to fraction form
    1,000.16/1,495.31 = 847.79/x
  3. Step 3: Cross multiply
    1,000.16x = 1,495.31 × 847.79
  4. Step 4: Simplify right side
    1,000.16x = 1,267,708.86
  5. Step 5: Solve for x
    x = 1,267,708.86/1,000.16
  6. Step 6: Final answer
    x = 1,267.51

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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.