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Finding the Fourth Proportional to 504.09, 755.87 and 322.79

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Solution

The fourth proportional to 504.09, 755.87 and 322.79 is: 484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.09 : 755.87 = 322.79 : x
  2. Step 2: Convert to fraction form
    504.09/755.87 = 322.79/x
  3. Step 3: Cross multiply
    504.09x = 755.87 × 322.79
  4. Step 4: Simplify right side
    504.09x = 243,981.88
  5. Step 5: Solve for x
    x = 243,981.88/504.09
  6. Step 6: Final answer
    x = 484.00

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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.