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Finding the Fourth Proportional to 465.42, 697.04 and 392.52

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Solution

The fourth proportional to 465.42, 697.04 and 392.52 is: 587.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.42 : 697.04 = 392.52 : x
  2. Step 2: Convert to fraction form
    465.42/697.04 = 392.52/x
  3. Step 3: Cross multiply
    465.42x = 697.04 × 392.52
  4. Step 4: Simplify right side
    465.42x = 273,602.14
  5. Step 5: Solve for x
    x = 273,602.14/465.42
  6. Step 6: Final answer
    x = 587.86

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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.