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Finding the Fourth Proportional to 646,906.10, 970,359.15 and 366,970.10

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Solution

The fourth proportional to 646,906.10, 970,359.15 and 366,970.10 is: 550,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,906.10 : 970,359.15 = 366,970.10 : x
  2. Step 2: Convert to fraction form
    646,906.10/970,359.15 = 366,970.10/x
  3. Step 3: Cross multiply
    646,906.10x = 970,359.15 × 366,970.10
  4. Step 4: Simplify right side
    646,906.10x = 356,092,794,311.42
  5. Step 5: Solve for x
    x = 356,092,794,311.42/646,906.10
  6. Step 6: Final answer
    x = 550,455.15

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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.