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Finding the Fourth Proportional to 1,010.10, 1,514.10 and 489.33

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Solution

The fourth proportional to 1,010.10, 1,514.10 and 489.33 is: 733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.10 : 1,514.10 = 489.33 : x
  2. Step 2: Convert to fraction form
    1,010.10/1,514.10 = 489.33/x
  3. Step 3: Cross multiply
    1,010.10x = 1,514.10 × 489.33
  4. Step 4: Simplify right side
    1,010.10x = 740,894.55
  5. Step 5: Solve for x
    x = 740,894.55/1,010.10
  6. Step 6: Final answer
    x = 733.49

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.