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Finding the Fourth Proportional to 651.92, 976.62 and 579.02

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Solution

The fourth proportional to 651.92, 976.62 and 579.02 is: 867.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.92 : 976.62 = 579.02 : x
  2. Step 2: Convert to fraction form
    651.92/976.62 = 579.02/x
  3. Step 3: Cross multiply
    651.92x = 976.62 × 579.02
  4. Step 4: Simplify right side
    651.92x = 565,482.51
  5. Step 5: Solve for x
    x = 565,482.51/651.92
  6. Step 6: Final answer
    x = 867.41

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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.