Home / 1,515,906.87-2,091,946.53-827,587.20

Finding the Fourth Proportional to 1,515,906.87, 2,091,946.53 and 827,587.20

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Solution

The fourth proportional to 1,515,906.87, 2,091,946.53 and 827,587.20 is: 1,142,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,906.87 : 2,091,946.53 = 827,587.20 : x
  2. Step 2: Convert to fraction form
    1,515,906.87/2,091,946.53 = 827,587.20/x
  3. Step 3: Cross multiply
    1,515,906.87x = 2,091,946.53 × 827,587.20
  4. Step 4: Simplify right side
    1,515,906.87x = 1,731,268,157,627.10
  5. Step 5: Solve for x
    x = 1,731,268,157,627.10/1,515,906.87
  6. Step 6: Final answer
    x = 1,142,067.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.