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Finding the Fourth Proportional to 580.44, 801.01 and 318.46

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Solution

The fourth proportional to 580.44, 801.01 and 318.46 is: 439.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.44 : 801.01 = 318.46 : x
  2. Step 2: Convert to fraction form
    580.44/801.01 = 318.46/x
  3. Step 3: Cross multiply
    580.44x = 801.01 × 318.46
  4. Step 4: Simplify right side
    580.44x = 255,088.05
  5. Step 5: Solve for x
    x = 255,088.05/580.44
  6. Step 6: Final answer
    x = 439.47

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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.