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Finding the Fourth Proportional to 614.76, 849.09 and 483.60

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Solution

The fourth proportional to 614.76, 849.09 and 483.60 is: 667.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.76 : 849.09 = 483.60 : x
  2. Step 2: Convert to fraction form
    614.76/849.09 = 483.60/x
  3. Step 3: Cross multiply
    614.76x = 849.09 × 483.60
  4. Step 4: Simplify right side
    614.76x = 410,619.92
  5. Step 5: Solve for x
    x = 410,619.92/614.76
  6. Step 6: Final answer
    x = 667.94

Related Problems

Find fourth proportional to 307.38, 424.55 and 241.80
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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.