Home / 700.20-1,049.78-353.27

Finding the Fourth Proportional to 700.20, 1,049.78 and 353.27

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Solution

The fourth proportional to 700.20, 1,049.78 and 353.27 is: 529.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.20 : 1,049.78 = 353.27 : x
  2. Step 2: Convert to fraction form
    700.20/1,049.78 = 353.27/x
  3. Step 3: Cross multiply
    700.20x = 1,049.78 × 353.27
  4. Step 4: Simplify right side
    700.20x = 370,848.77
  5. Step 5: Solve for x
    x = 370,848.77/700.20
  6. Step 6: Final answer
    x = 529.63

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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.