Home / 1,368,831.15-2,052,561.47-422,078.85

Finding the Fourth Proportional to 1,368,831.15, 2,052,561.47 and 422,078.85

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Solution

The fourth proportional to 1,368,831.15, 2,052,561.47 and 422,078.85 is: 632,906.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,831.15 : 2,052,561.47 = 422,078.85 : x
  2. Step 2: Convert to fraction form
    1,368,831.15/2,052,561.47 = 422,078.85/x
  3. Step 3: Cross multiply
    1,368,831.15x = 2,052,561.47 × 422,078.85
  4. Step 4: Simplify right side
    1,368,831.15x = 866,342,782,701.52
  5. Step 5: Solve for x
    x = 866,342,782,701.52/1,368,831.15
  6. Step 6: Final answer
    x = 632,906.98

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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.