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Finding the Fourth Proportional to 611.60, 842.28 and 598.16

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Solution

The fourth proportional to 611.60, 842.28 and 598.16 is: 823.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.60 : 842.28 = 598.16 : x
  2. Step 2: Convert to fraction form
    611.60/842.28 = 598.16/x
  3. Step 3: Cross multiply
    611.60x = 842.28 × 598.16
  4. Step 4: Simplify right side
    611.60x = 503,818.20
  5. Step 5: Solve for x
    x = 503,818.20/611.60
  6. Step 6: Final answer
    x = 823.77

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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.