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Finding the Fourth Proportional to 952.40, 1,313.60 and 602.76

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Solution

The fourth proportional to 952.40, 1,313.60 and 602.76 is: 831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.40 : 1,313.60 = 602.76 : x
  2. Step 2: Convert to fraction form
    952.40/1,313.60 = 602.76/x
  3. Step 3: Cross multiply
    952.40x = 1,313.60 × 602.76
  4. Step 4: Simplify right side
    952.40x = 791,785.54
  5. Step 5: Solve for x
    x = 791,785.54/952.40
  6. Step 6: Final answer
    x = 831.36

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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.