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Finding the Fourth Proportional to 819,010.10, 1,228,515.15 and 732,404.90

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Solution

The fourth proportional to 819,010.10, 1,228,515.15 and 732,404.90 is: 1,098,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,010.10 : 1,228,515.15 = 732,404.90 : x
  2. Step 2: Convert to fraction form
    819,010.10/1,228,515.15 = 732,404.90/x
  3. Step 3: Cross multiply
    819,010.10x = 1,228,515.15 × 732,404.90
  4. Step 4: Simplify right side
    819,010.10x = 899,770,515,584.24
  5. Step 5: Solve for x
    x = 899,770,515,584.24/819,010.10
  6. Step 6: Final answer
    x = 1,098,607.35

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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.