Home / 743,161.29-1,025,528.24-420,873.71

Finding the Fourth Proportional to 743,161.29, 1,025,528.24 and 420,873.71

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Solution

The fourth proportional to 743,161.29, 1,025,528.24 and 420,873.71 is: 580,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,161.29 : 1,025,528.24 = 420,873.71 : x
  2. Step 2: Convert to fraction form
    743,161.29/1,025,528.24 = 420,873.71/x
  3. Step 3: Cross multiply
    743,161.29x = 1,025,528.24 × 420,873.71
  4. Step 4: Simplify right side
    743,161.29x = 431,617,867,846.56
  5. Step 5: Solve for x
    x = 431,617,867,846.56/743,161.29
  6. Step 6: Final answer
    x = 580,786.26

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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.