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Finding the Fourth Proportional to 602.86, 904.56 and 579.28

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Solution

The fourth proportional to 602.86, 904.56 and 579.28 is: 869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.86 : 904.56 = 579.28 : x
  2. Step 2: Convert to fraction form
    602.86/904.56 = 579.28/x
  3. Step 3: Cross multiply
    602.86x = 904.56 × 579.28
  4. Step 4: Simplify right side
    602.86x = 523,993.52
  5. Step 5: Solve for x
    x = 523,993.52/602.86
  6. Step 6: Final answer
    x = 869.18

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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.