Home / 700.20-1,049.79-353.37

Finding the Fourth Proportional to 700.20, 1,049.79 and 353.37

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Solution

The fourth proportional to 700.20, 1,049.79 and 353.37 is: 529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.20 : 1,049.79 = 353.37 : x
  2. Step 2: Convert to fraction form
    700.20/1,049.79 = 353.37/x
  3. Step 3: Cross multiply
    700.20x = 1,049.79 × 353.37
  4. Step 4: Simplify right side
    700.20x = 370,957.28
  5. Step 5: Solve for x
    x = 370,957.28/700.20
  6. Step 6: Final answer
    x = 529.79

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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.