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Finding the Fourth Proportional to 579.48, 867.66 and 469.32

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Solution

The fourth proportional to 579.48, 867.66 and 469.32 is: 702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.48 : 867.66 = 469.32 : x
  2. Step 2: Convert to fraction form
    579.48/867.66 = 469.32/x
  3. Step 3: Cross multiply
    579.48x = 867.66 × 469.32
  4. Step 4: Simplify right side
    579.48x = 407,210.19
  5. Step 5: Solve for x
    x = 407,210.19/579.48
  6. Step 6: Final answer
    x = 702.72

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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.