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Finding the Fourth Proportional to 555.39, 765.77 and 444.69

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Solution

The fourth proportional to 555.39, 765.77 and 444.69 is: 613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.39 : 765.77 = 444.69 : x
  2. Step 2: Convert to fraction form
    555.39/765.77 = 444.69/x
  3. Step 3: Cross multiply
    555.39x = 765.77 × 444.69
  4. Step 4: Simplify right side
    555.39x = 340,528.04
  5. Step 5: Solve for x
    x = 340,528.04/555.39
  6. Step 6: Final answer
    x = 613.13

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Double scale
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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.