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Finding the Fourth Proportional to 739.07, 1,020.03 and 444.39

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Solution

The fourth proportional to 739.07, 1,020.03 and 444.39 is: 613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.07 : 1,020.03 = 444.39 : x
  2. Step 2: Convert to fraction form
    739.07/1,020.03 = 444.39/x
  3. Step 3: Cross multiply
    739.07x = 1,020.03 × 444.39
  4. Step 4: Simplify right side
    739.07x = 453,291.13
  5. Step 5: Solve for x
    x = 453,291.13/739.07
  6. Step 6: Final answer
    x = 613.33

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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.