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Finding the Fourth Proportional to 700.37, 1,049.84 and 440.55

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Solution

The fourth proportional to 700.37, 1,049.84 and 440.55 is: 660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.37 : 1,049.84 = 440.55 : x
  2. Step 2: Convert to fraction form
    700.37/1,049.84 = 440.55/x
  3. Step 3: Cross multiply
    700.37x = 1,049.84 × 440.55
  4. Step 4: Simplify right side
    700.37x = 462,509.49
  5. Step 5: Solve for x
    x = 462,509.49/700.37
  6. Step 6: Final answer
    x = 660.38

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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.