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Finding the Fourth Proportional to 646,845.60, 970,268.40 and 363,410.40

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Solution

The fourth proportional to 646,845.60, 970,268.40 and 363,410.40 is: 545,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,845.60 : 970,268.40 = 363,410.40 : x
  2. Step 2: Convert to fraction form
    646,845.60/970,268.40 = 363,410.40/x
  3. Step 3: Cross multiply
    646,845.60x = 970,268.40 × 363,410.40
  4. Step 4: Simplify right side
    646,845.60x = 352,605,627,351.36
  5. Step 5: Solve for x
    x = 352,605,627,351.36/646,845.60
  6. Step 6: Final answer
    x = 545,115.60

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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.