Home / 861,731.51-1,189,252.71-616,739.27

Finding the Fourth Proportional to 861,731.51, 1,189,252.71 and 616,739.27

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Solution

The fourth proportional to 861,731.51, 1,189,252.71 and 616,739.27 is: 851,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,731.51 : 1,189,252.71 = 616,739.27 : x
  2. Step 2: Convert to fraction form
    861,731.51/1,189,252.71 = 616,739.27/x
  3. Step 3: Cross multiply
    861,731.51x = 1,189,252.71 × 616,739.27
  4. Step 4: Simplify right side
    861,731.51x = 733,458,848,210.92
  5. Step 5: Solve for x
    x = 733,458,848,210.92/861,731.51
  6. Step 6: Final answer
    x = 851,145.44

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1.5x scale

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.