Home / 1,200,068.26-1,800,054.36-661,392.37

Finding the Fourth Proportional to 1,200,068.26, 1,800,054.36 and 661,392.37

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Solution

The fourth proportional to 1,200,068.26, 1,800,054.36 and 661,392.37 is: 992,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,068.26 : 1,800,054.36 = 661,392.37 : x
  2. Step 2: Convert to fraction form
    1,200,068.26/1,800,054.36 = 661,392.37/x
  3. Step 3: Cross multiply
    1,200,068.26x = 1,800,054.36 × 661,392.37
  4. Step 4: Simplify right side
    1,200,068.26x = 1,190,542,221,539.30
  5. Step 5: Solve for x
    x = 1,190,542,221,539.30/1,200,068.26
  6. Step 6: Final answer
    x = 992,062.09

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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.