Home / 605,621.21-835,758.06-329,977.76

Finding the Fourth Proportional to 605,621.21, 835,758.06 and 329,977.76

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Solution

The fourth proportional to 605,621.21, 835,758.06 and 329,977.76 is: 455,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,621.21 : 835,758.06 = 329,977.76 : x
  2. Step 2: Convert to fraction form
    605,621.21/835,758.06 = 329,977.76/x
  3. Step 3: Cross multiply
    605,621.21x = 835,758.06 × 329,977.76
  4. Step 4: Simplify right side
    605,621.21x = 275,781,572,540.75
  5. Step 5: Solve for x
    x = 275,781,572,540.75/605,621.21
  6. Step 6: Final answer
    x = 455,369.74

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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.