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Finding the Fourth Proportional to 630.99, 945.68 and 624.11

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Solution

The fourth proportional to 630.99, 945.68 and 624.11 is: 935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.99 : 945.68 = 624.11 : x
  2. Step 2: Convert to fraction form
    630.99/945.68 = 624.11/x
  3. Step 3: Cross multiply
    630.99x = 945.68 × 624.11
  4. Step 4: Simplify right side
    630.99x = 590,200.50
  5. Step 5: Solve for x
    x = 590,200.50/630.99
  6. Step 6: Final answer
    x = 935.36

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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.