Home / 557.01-836.33-411.21

Finding the Fourth Proportional to 557.01, 836.33 and 411.21

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Solution

The fourth proportional to 557.01, 836.33 and 411.21 is: 617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.01 : 836.33 = 411.21 : x
  2. Step 2: Convert to fraction form
    557.01/836.33 = 411.21/x
  3. Step 3: Cross multiply
    557.01x = 836.33 × 411.21
  4. Step 4: Simplify right side
    557.01x = 343,905.20
  5. Step 5: Solve for x
    x = 343,905.20/557.01
  6. Step 6: Final answer
    x = 617.41

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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.