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Finding the Fourth Proportional to 548.99, 757.04 and 430.75

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Solution

The fourth proportional to 548.99, 757.04 and 430.75 is: 593.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.99 : 757.04 = 430.75 : x
  2. Step 2: Convert to fraction form
    548.99/757.04 = 430.75/x
  3. Step 3: Cross multiply
    548.99x = 757.04 × 430.75
  4. Step 4: Simplify right side
    548.99x = 326,094.98
  5. Step 5: Solve for x
    x = 326,094.98/548.99
  6. Step 6: Final answer
    x = 593.99

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.