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Finding the Fourth Proportional to 940.74, 1,298.24 and 567.73

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Solution

The fourth proportional to 940.74, 1,298.24 and 567.73 is: 783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.74 : 1,298.24 = 567.73 : x
  2. Step 2: Convert to fraction form
    940.74/1,298.24 = 567.73/x
  3. Step 3: Cross multiply
    940.74x = 1,298.24 × 567.73
  4. Step 4: Simplify right side
    940.74x = 737,049.80
  5. Step 5: Solve for x
    x = 737,049.80/940.74
  6. Step 6: Final answer
    x = 783.48

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Half scale
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Double scale
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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.