Home / 726,185.08-1,002,065.19-420,200.44

Finding the Fourth Proportional to 726,185.08, 1,002,065.19 and 420,200.44

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Solution

The fourth proportional to 726,185.08, 1,002,065.19 and 420,200.44 is: 579,835.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,185.08 : 1,002,065.19 = 420,200.44 : x
  2. Step 2: Convert to fraction form
    726,185.08/1,002,065.19 = 420,200.44/x
  3. Step 3: Cross multiply
    726,185.08x = 1,002,065.19 × 420,200.44
  4. Step 4: Simplify right side
    726,185.08x = 421,068,233,746.68
  5. Step 5: Solve for x
    x = 421,068,233,746.68/726,185.08
  6. Step 6: Final answer
    x = 579,835.97

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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.