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Finding the Fourth Proportional to 608.76, 839.78 and 372.62

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Solution

The fourth proportional to 608.76, 839.78 and 372.62 is: 514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.76 : 839.78 = 372.62 : x
  2. Step 2: Convert to fraction form
    608.76/839.78 = 372.62/x
  3. Step 3: Cross multiply
    608.76x = 839.78 × 372.62
  4. Step 4: Simplify right side
    608.76x = 312,918.82
  5. Step 5: Solve for x
    x = 312,918.82/608.76
  6. Step 6: Final answer
    x = 514.03

Related Problems

Find fourth proportional to 304.38, 419.89 and 186.31
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Double scale
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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.