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Finding the Fourth Proportional to 960.42, 1,325.38 and 567.69

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Solution

The fourth proportional to 960.42, 1,325.38 and 567.69 is: 783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.42 : 1,325.38 = 567.69 : x
  2. Step 2: Convert to fraction form
    960.42/1,325.38 = 567.69/x
  3. Step 3: Cross multiply
    960.42x = 1,325.38 × 567.69
  4. Step 4: Simplify right side
    960.42x = 752,400.71
  5. Step 5: Solve for x
    x = 752,400.71/960.42
  6. Step 6: Final answer
    x = 783.40

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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.