Home / 726,958.39-1,003,212.12-400,309.69

Finding the Fourth Proportional to 726,958.39, 1,003,212.12 and 400,309.69

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Solution

The fourth proportional to 726,958.39, 1,003,212.12 and 400,309.69 is: 552,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,958.39 : 1,003,212.12 = 400,309.69 : x
  2. Step 2: Convert to fraction form
    726,958.39/1,003,212.12 = 400,309.69/x
  3. Step 3: Cross multiply
    726,958.39x = 1,003,212.12 × 400,309.69
  4. Step 4: Simplify right side
    726,958.39x = 401,595,532,761.44
  5. Step 5: Solve for x
    x = 401,595,532,761.44/726,958.39
  6. Step 6: Final answer
    x = 552,432.63

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1.5x scale

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.