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Finding the Fourth Proportional to 600.76, 829.31 and 401.90

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Solution

The fourth proportional to 600.76, 829.31 and 401.90 is: 554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.76 : 829.31 = 401.90 : x
  2. Step 2: Convert to fraction form
    600.76/829.31 = 401.90/x
  3. Step 3: Cross multiply
    600.76x = 829.31 × 401.90
  4. Step 4: Simplify right side
    600.76x = 333,302.77
  5. Step 5: Solve for x
    x = 333,302.77/600.76
  6. Step 6: Final answer
    x = 554.80

Related Problems

Find fourth proportional to 300.38, 414.66 and 200.95
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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.