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Finding the Fourth Proportional to 587.33, 879.45 and 570

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Solution

The fourth proportional to 587.33, 879.45 and 570 is: 853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.33 : 879.45 = 570 : x
  2. Step 2: Convert to fraction form
    587.33/879.45 = 570/x
  3. Step 3: Cross multiply
    587.33x = 879.45 × 570
  4. Step 4: Simplify right side
    587.33x = 501,286.50
  5. Step 5: Solve for x
    x = 501,286.50/587.33
  6. Step 6: Final answer
    x = 853.50

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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.