Home / 726,914.74-1,003,134.90-400,217.44

Finding the Fourth Proportional to 726,914.74, 1,003,134.90 and 400,217.44

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Solution

The fourth proportional to 726,914.74, 1,003,134.90 and 400,217.44 is: 552,295.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,914.74 : 1,003,134.90 = 400,217.44 : x
  2. Step 2: Convert to fraction form
    726,914.74/1,003,134.90 = 400,217.44/x
  3. Step 3: Cross multiply
    726,914.74x = 1,003,134.90 × 400,217.44
  4. Step 4: Simplify right side
    726,914.74x = 401,472,081,652.66
  5. Step 5: Solve for x
    x = 401,472,081,652.66/726,914.74
  6. Step 6: Final answer
    x = 552,295.97

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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.