Home / 743,169.87-1,025,540.06-420,882.28

Finding the Fourth Proportional to 743,169.87, 1,025,540.06 and 420,882.28

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Solution

The fourth proportional to 743,169.87, 1,025,540.06 and 420,882.28 is: 580,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,169.87 : 1,025,540.06 = 420,882.28 : x
  2. Step 2: Convert to fraction form
    743,169.87/1,025,540.06 = 420,882.28/x
  3. Step 3: Cross multiply
    743,169.87x = 1,025,540.06 × 420,882.28
  4. Step 4: Simplify right side
    743,169.87x = 431,631,634,015.88
  5. Step 5: Solve for x
    x = 431,631,634,015.88/743,169.87
  6. Step 6: Final answer
    x = 580,798.08

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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.