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Finding the Fourth Proportional to 600.75, 828.90 and 451.51

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Solution

The fourth proportional to 600.75, 828.90 and 451.51 is: 622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.75 : 828.90 = 451.51 : x
  2. Step 2: Convert to fraction form
    600.75/828.90 = 451.51/x
  3. Step 3: Cross multiply
    600.75x = 828.90 × 451.51
  4. Step 4: Simplify right side
    600.75x = 374,254.57
  5. Step 5: Solve for x
    x = 374,254.57/600.75
  6. Step 6: Final answer
    x = 622.98

Related Problems

Find fourth proportional to 300.38, 414.45 and 225.75
Half scale
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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.