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Finding the Fourth Proportional to 607.95, 839.61 and 466.56

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Solution

The fourth proportional to 607.95, 839.61 and 466.56 is: 644.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.95 : 839.61 = 466.56 : x
  2. Step 2: Convert to fraction form
    607.95/839.61 = 466.56/x
  3. Step 3: Cross multiply
    607.95x = 839.61 × 466.56
  4. Step 4: Simplify right side
    607.95x = 391,728.44
  5. Step 5: Solve for x
    x = 391,728.44/607.95
  6. Step 6: Final answer
    x = 644.34

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.