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Finding the Fourth Proportional to 524.09, 785.23 and 437.99

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Solution

The fourth proportional to 524.09, 785.23 and 437.99 is: 656.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.09 : 785.23 = 437.99 : x
  2. Step 2: Convert to fraction form
    524.09/785.23 = 437.99/x
  3. Step 3: Cross multiply
    524.09x = 785.23 × 437.99
  4. Step 4: Simplify right side
    524.09x = 343,917.87
  5. Step 5: Solve for x
    x = 343,917.87/524.09
  6. Step 6: Final answer
    x = 656.22

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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.