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Finding the Fourth Proportional to 739.35, 1,020.24 and 444.56

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Solution

The fourth proportional to 739.35, 1,020.24 and 444.56 is: 613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.35 : 1,020.24 = 444.56 : x
  2. Step 2: Convert to fraction form
    739.35/1,020.24 = 444.56/x
  3. Step 3: Cross multiply
    739.35x = 1,020.24 × 444.56
  4. Step 4: Simplify right side
    739.35x = 453,552.79
  5. Step 5: Solve for x
    x = 453,552.79/739.35
  6. Step 6: Final answer
    x = 613.45

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1.5x scale

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.