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Finding the Fourth Proportional to 587.37, 808.79 and 557.25

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Solution

The fourth proportional to 587.37, 808.79 and 557.25 is: 767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.37 : 808.79 = 557.25 : x
  2. Step 2: Convert to fraction form
    587.37/808.79 = 557.25/x
  3. Step 3: Cross multiply
    587.37x = 808.79 × 557.25
  4. Step 4: Simplify right side
    587.37x = 450,698.23
  5. Step 5: Solve for x
    x = 450,698.23/587.37
  6. Step 6: Final answer
    x = 767.32

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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.