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Finding the Fourth Proportional to 1,073.01, 1,609.52 and 342.65

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Solution

The fourth proportional to 1,073.01, 1,609.52 and 342.65 is: 513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.01 : 1,609.52 = 342.65 : x
  2. Step 2: Convert to fraction form
    1,073.01/1,609.52 = 342.65/x
  3. Step 3: Cross multiply
    1,073.01x = 1,609.52 × 342.65
  4. Step 4: Simplify right side
    1,073.01x = 551,500.31
  5. Step 5: Solve for x
    x = 551,500.31/1,073.01
  6. Step 6: Final answer
    x = 513.98

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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.