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Finding the Fourth Proportional to 554.76, 832.22 and 433.24

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Solution

The fourth proportional to 554.76, 832.22 and 433.24 is: 649.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.76 : 832.22 = 433.24 : x
  2. Step 2: Convert to fraction form
    554.76/832.22 = 433.24/x
  3. Step 3: Cross multiply
    554.76x = 832.22 × 433.24
  4. Step 4: Simplify right side
    554.76x = 360,550.99
  5. Step 5: Solve for x
    x = 360,550.99/554.76
  6. Step 6: Final answer
    x = 649.92

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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.