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Finding the Fourth Proportional to 423.63, 583.38 and 414.09

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Solution

The fourth proportional to 423.63, 583.38 and 414.09 is: 570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.63 : 583.38 = 414.09 : x
  2. Step 2: Convert to fraction form
    423.63/583.38 = 414.09/x
  3. Step 3: Cross multiply
    423.63x = 583.38 × 414.09
  4. Step 4: Simplify right side
    423.63x = 241,571.82
  5. Step 5: Solve for x
    x = 241,571.82/423.63
  6. Step 6: Final answer
    x = 570.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.