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Finding the Fourth Proportional to 740.76, 1,022.22 and 460.92

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Solution

The fourth proportional to 740.76, 1,022.22 and 460.92 is: 636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.76 : 1,022.22 = 460.92 : x
  2. Step 2: Convert to fraction form
    740.76/1,022.22 = 460.92/x
  3. Step 3: Cross multiply
    740.76x = 1,022.22 × 460.92
  4. Step 4: Simplify right side
    740.76x = 471,161.64
  5. Step 5: Solve for x
    x = 471,161.64/740.76
  6. Step 6: Final answer
    x = 636.05

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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.