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Finding the Fourth Proportional to 589.70, 885.18 and 521.66

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Solution

The fourth proportional to 589.70, 885.18 and 521.66 is: 783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.70 : 885.18 = 521.66 : x
  2. Step 2: Convert to fraction form
    589.70/885.18 = 521.66/x
  3. Step 3: Cross multiply
    589.70x = 885.18 × 521.66
  4. Step 4: Simplify right side
    589.70x = 461,763.00
  5. Step 5: Solve for x
    x = 461,763.00/589.70
  6. Step 6: Final answer
    x = 783.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.