Home / 727,923-1,004,247.32-486,363.36

Finding the Fourth Proportional to 727,923, 1,004,247.32 and 486,363.36

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Solution

The fourth proportional to 727,923, 1,004,247.32 and 486,363.36 is: 670,990.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,923 : 1,004,247.32 = 486,363.36 : x
  2. Step 2: Convert to fraction form
    727,923/1,004,247.32 = 486,363.36/x
  3. Step 3: Cross multiply
    727,923x = 1,004,247.32 × 486,363.36
  4. Step 4: Simplify right side
    727,923x = 488,429,100,826.20
  5. Step 5: Solve for x
    x = 488,429,100,826.20/727,923
  6. Step 6: Final answer
    x = 670,990.06

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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.