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Finding the Fourth Proportional to 630.49, 945.73 and 457.24

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Solution

The fourth proportional to 630.49, 945.73 and 457.24 is: 685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.49 : 945.73 = 457.24 : x
  2. Step 2: Convert to fraction form
    630.49/945.73 = 457.24/x
  3. Step 3: Cross multiply
    630.49x = 945.73 × 457.24
  4. Step 4: Simplify right side
    630.49x = 432,425.59
  5. Step 5: Solve for x
    x = 432,425.59/630.49
  6. Step 6: Final answer
    x = 685.86

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.