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Finding the Fourth Proportional to 859.01, 1,185.44 and 527.41

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Solution

The fourth proportional to 859.01, 1,185.44 and 527.41 is: 727.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    859.01 : 1,185.44 = 527.41 : x
  2. Step 2: Convert to fraction form
    859.01/1,185.44 = 527.41/x
  3. Step 3: Cross multiply
    859.01x = 1,185.44 × 527.41
  4. Step 4: Simplify right side
    859.01x = 625,211.76
  5. Step 5: Solve for x
    x = 625,211.76/859.01
  6. Step 6: Final answer
    x = 727.83

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1.5x scale

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.