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Finding the Fourth Proportional to 604.77, 834.56 and 356.03

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Solution

The fourth proportional to 604.77, 834.56 and 356.03 is: 491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.77 : 834.56 = 356.03 : x
  2. Step 2: Convert to fraction form
    604.77/834.56 = 356.03/x
  3. Step 3: Cross multiply
    604.77x = 834.56 × 356.03
  4. Step 4: Simplify right side
    604.77x = 297,126.62
  5. Step 5: Solve for x
    x = 297,126.62/604.77
  6. Step 6: Final answer
    x = 491.31

Related Problems

Find fourth proportional to 302.38, 417.28 and 178.02
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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.