Home / 727,190.60-1,004,015.94-455,367.56

Finding the Fourth Proportional to 727,190.60, 1,004,015.94 and 455,367.56

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Solution

The fourth proportional to 727,190.60, 1,004,015.94 and 455,367.56 is: 628,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,190.60 : 1,004,015.94 = 455,367.56 : x
  2. Step 2: Convert to fraction form
    727,190.60/1,004,015.94 = 455,367.56/x
  3. Step 3: Cross multiply
    727,190.60x = 1,004,015.94 × 455,367.56
  4. Step 4: Simplify right side
    727,190.60x = 457,196,288,798.91
  5. Step 5: Solve for x
    x = 457,196,288,798.91/727,190.60
  6. Step 6: Final answer
    x = 628,715.89

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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.