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Finding the Fourth Proportional to 609.49, 915.10 and 377.63

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Solution

The fourth proportional to 609.49, 915.10 and 377.63 is: 566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.49 : 915.10 = 377.63 : x
  2. Step 2: Convert to fraction form
    609.49/915.10 = 377.63/x
  3. Step 3: Cross multiply
    609.49x = 915.10 × 377.63
  4. Step 4: Simplify right side
    609.49x = 345,567.13
  5. Step 5: Solve for x
    x = 345,567.13/609.49
  6. Step 6: Final answer
    x = 566.98

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.