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Finding the Fourth Proportional to 624.77, 861.37 and 512.32

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Solution

The fourth proportional to 624.77, 861.37 and 512.32 is: 706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.77 : 861.37 = 512.32 : x
  2. Step 2: Convert to fraction form
    624.77/861.37 = 512.32/x
  3. Step 3: Cross multiply
    624.77x = 861.37 × 512.32
  4. Step 4: Simplify right side
    624.77x = 441,297.08
  5. Step 5: Solve for x
    x = 441,297.08/624.77
  6. Step 6: Final answer
    x = 706.34

Related Problems

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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.