Home / 1,190,752.20-1,643,231.52-646,883.64

Finding the Fourth Proportional to 1,190,752.20, 1,643,231.52 and 646,883.64

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Solution

The fourth proportional to 1,190,752.20, 1,643,231.52 and 646,883.64 is: 892,695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,752.20 : 1,643,231.52 = 646,883.64 : x
  2. Step 2: Convert to fraction form
    1,190,752.20/1,643,231.52 = 646,883.64/x
  3. Step 3: Cross multiply
    1,190,752.20x = 1,643,231.52 × 646,883.64
  4. Step 4: Simplify right side
    1,190,752.20x = 1,062,979,587,020.33
  5. Step 5: Solve for x
    x = 1,062,979,587,020.33/1,190,752.20
  6. Step 6: Final answer
    x = 892,695.88

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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.