Home / 1,049.02-1,573.77-399.70

Finding the Fourth Proportional to 1,049.02, 1,573.77 and 399.70

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Solution

The fourth proportional to 1,049.02, 1,573.77 and 399.70 is: 599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.02 : 1,573.77 = 399.70 : x
  2. Step 2: Convert to fraction form
    1,049.02/1,573.77 = 399.70/x
  3. Step 3: Cross multiply
    1,049.02x = 1,573.77 × 399.70
  4. Step 4: Simplify right side
    1,049.02x = 629,035.87
  5. Step 5: Solve for x
    x = 629,035.87/1,049.02
  6. Step 6: Final answer
    x = 599.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.