Home / 605,620.21-835,756.68-329,976.76

Finding the Fourth Proportional to 605,620.21, 835,756.68 and 329,976.76

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Solution

The fourth proportional to 605,620.21, 835,756.68 and 329,976.76 is: 455,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,620.21 : 835,756.68 = 329,976.76 : x
  2. Step 2: Convert to fraction form
    605,620.21/835,756.68 = 329,976.76/x
  3. Step 3: Cross multiply
    605,620.21x = 835,756.68 × 329,976.76
  4. Step 4: Simplify right side
    605,620.21x = 275,780,281,414.76
  5. Step 5: Solve for x
    x = 275,780,281,414.76/605,620.21
  6. Step 6: Final answer
    x = 455,368.36

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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.