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Finding the Fourth Proportional to 1,010.00, 1,514.43 and 489.58

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Solution

The fourth proportional to 1,010.00, 1,514.43 and 489.58 is: 734.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.00 : 1,514.43 = 489.58 : x
  2. Step 2: Convert to fraction form
    1,010.00/1,514.43 = 489.58/x
  3. Step 3: Cross multiply
    1,010.00x = 1,514.43 × 489.58
  4. Step 4: Simplify right side
    1,010.00x = 741,430.85
  5. Step 5: Solve for x
    x = 741,430.85/1,010.00
  6. Step 6: Final answer
    x = 734.09

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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.