Home / 1,109,712.96-1,664,175.60-399,550.32

Finding the Fourth Proportional to 1,109,712.96, 1,664,175.60 and 399,550.32

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Solution

The fourth proportional to 1,109,712.96, 1,664,175.60 and 399,550.32 is: 599,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,712.96 : 1,664,175.60 = 399,550.32 : x
  2. Step 2: Convert to fraction form
    1,109,712.96/1,664,175.60 = 399,550.32/x
  3. Step 3: Cross multiply
    1,109,712.96x = 1,664,175.60 × 399,550.32
  4. Step 4: Simplify right side
    1,109,712.96x = 664,921,893,516.19
  5. Step 5: Solve for x
    x = 664,921,893,516.19/1,109,712.96
  6. Step 6: Final answer
    x = 599,183.68

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Double scale
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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.