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Finding the Fourth Proportional to 573.86, 856.59 and 493.22

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Solution

The fourth proportional to 573.86, 856.59 and 493.22 is: 736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.86 : 856.59 = 493.22 : x
  2. Step 2: Convert to fraction form
    573.86/856.59 = 493.22/x
  3. Step 3: Cross multiply
    573.86x = 856.59 × 493.22
  4. Step 4: Simplify right side
    573.86x = 422,484.85
  5. Step 5: Solve for x
    x = 422,484.85/573.86
  6. Step 6: Final answer
    x = 736.22

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.