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Finding the Fourth Proportional to 586.31, 809.24 and 527.19

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Solution

The fourth proportional to 586.31, 809.24 and 527.19 is: 727.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.31 : 809.24 = 527.19 : x
  2. Step 2: Convert to fraction form
    586.31/809.24 = 527.19/x
  3. Step 3: Cross multiply
    586.31x = 809.24 × 527.19
  4. Step 4: Simplify right side
    586.31x = 426,620.60
  5. Step 5: Solve for x
    x = 426,620.60/586.31
  6. Step 6: Final answer
    x = 727.64

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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.