Home / 1,170,383.68-1,615,260.83-661,118.86

Finding the Fourth Proportional to 1,170,383.68, 1,615,260.83 and 661,118.86

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Solution

The fourth proportional to 1,170,383.68, 1,615,260.83 and 661,118.86 is: 912,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,383.68 : 1,615,260.83 = 661,118.86 : x
  2. Step 2: Convert to fraction form
    1,170,383.68/1,615,260.83 = 661,118.86/x
  3. Step 3: Cross multiply
    1,170,383.68x = 1,615,260.83 × 661,118.86
  4. Step 4: Simplify right side
    1,170,383.68x = 1,067,879,398,532.25
  5. Step 5: Solve for x
    x = 1,067,879,398,532.25/1,170,383.68
  6. Step 6: Final answer
    x = 912,418.22

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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.