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Finding the Fourth Proportional to 434.42, 601.21 and 423.62

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Solution

The fourth proportional to 434.42, 601.21 and 423.62 is: 586.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.42 : 601.21 = 423.62 : x
  2. Step 2: Convert to fraction form
    434.42/601.21 = 423.62/x
  3. Step 3: Cross multiply
    434.42x = 601.21 × 423.62
  4. Step 4: Simplify right side
    434.42x = 254,684.58
  5. Step 5: Solve for x
    x = 254,684.58/434.42
  6. Step 6: Final answer
    x = 586.26

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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.