Home / 1,398,500.51-1,928,738.36-1,181,767.55

Finding the Fourth Proportional to 1,398,500.51, 1,928,738.36 and 1,181,767.55

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Solution

The fourth proportional to 1,398,500.51, 1,928,738.36 and 1,181,767.55 is: 1,629,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,500.51 : 1,928,738.36 = 1,181,767.55 : x
  2. Step 2: Convert to fraction form
    1,398,500.51/1,928,738.36 = 1,181,767.55/x
  3. Step 3: Cross multiply
    1,398,500.51x = 1,928,738.36 × 1,181,767.55
  4. Step 4: Simplify right side
    1,398,500.51x = 2,279,320,400,379.38
  5. Step 5: Solve for x
    x = 2,279,320,400,379.38/1,398,500.51
  6. Step 6: Final answer
    x = 1,629,831.65

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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.