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Finding the Fourth Proportional to 520.22, 717.64 and 483.16

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Solution

The fourth proportional to 520.22, 717.64 and 483.16 is: 666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.22 : 717.64 = 483.16 : x
  2. Step 2: Convert to fraction form
    520.22/717.64 = 483.16/x
  3. Step 3: Cross multiply
    520.22x = 717.64 × 483.16
  4. Step 4: Simplify right side
    520.22x = 346,734.94
  5. Step 5: Solve for x
    x = 346,734.94/520.22
  6. Step 6: Final answer
    x = 666.52

Related Problems

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Double scale
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Similar ratio
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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.