Home / 809,407.68-1,116,991.62-446,831.72

Finding the Fourth Proportional to 809,407.68, 1,116,991.62 and 446,831.72

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Solution

The fourth proportional to 809,407.68, 1,116,991.62 and 446,831.72 is: 616,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,407.68 : 1,116,991.62 = 446,831.72 : x
  2. Step 2: Convert to fraction form
    809,407.68/1,116,991.62 = 446,831.72/x
  3. Step 3: Cross multiply
    809,407.68x = 1,116,991.62 × 446,831.72
  4. Step 4: Simplify right side
    809,407.68x = 499,107,286,790.19
  5. Step 5: Solve for x
    x = 499,107,286,790.19/809,407.68
  6. Step 6: Final answer
    x = 616,632.75

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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.