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Finding the Fourth Proportional to 646,997.40, 970,496.10 and 226,229.40

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Solution

The fourth proportional to 646,997.40, 970,496.10 and 226,229.40 is: 339,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,997.40 : 970,496.10 = 226,229.40 : x
  2. Step 2: Convert to fraction form
    646,997.40/970,496.10 = 226,229.40/x
  3. Step 3: Cross multiply
    646,997.40x = 970,496.10 × 226,229.40
  4. Step 4: Simplify right side
    646,997.40x = 219,554,750,405.34
  5. Step 5: Solve for x
    x = 219,554,750,405.34/646,997.40
  6. Step 6: Final answer
    x = 339,344.10

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Half scale
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Double scale
Find fourth proportional to 646,998.40, 970,497.60 and 226,230.40
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.