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Finding the Fourth Proportional to 587.32, 806.57 and 504.40

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Solution

The fourth proportional to 587.32, 806.57 and 504.40 is: 692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.32 : 806.57 = 504.40 : x
  2. Step 2: Convert to fraction form
    587.32/806.57 = 504.40/x
  3. Step 3: Cross multiply
    587.32x = 806.57 × 504.40
  4. Step 4: Simplify right side
    587.32x = 406,833.91
  5. Step 5: Solve for x
    x = 406,833.91/587.32
  6. Step 6: Final answer
    x = 692.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.