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Finding the Fourth Proportional to 902.80, 1,246.01 and 548.76

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Solution

The fourth proportional to 902.80, 1,246.01 and 548.76 is: 757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.80 : 1,246.01 = 548.76 : x
  2. Step 2: Convert to fraction form
    902.80/1,246.01 = 548.76/x
  3. Step 3: Cross multiply
    902.80x = 1,246.01 × 548.76
  4. Step 4: Simplify right side
    902.80x = 683,760.45
  5. Step 5: Solve for x
    x = 683,760.45/902.80
  6. Step 6: Final answer
    x = 757.38

Related Problems

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Half scale
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Double scale
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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.