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Finding the Fourth Proportional to 852.01, 1,279.63 and 529.63

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Solution

The fourth proportional to 852.01, 1,279.63 and 529.63 is: 795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.01 : 1,279.63 = 529.63 : x
  2. Step 2: Convert to fraction form
    852.01/1,279.63 = 529.63/x
  3. Step 3: Cross multiply
    852.01x = 1,279.63 × 529.63
  4. Step 4: Simplify right side
    852.01x = 677,724.04
  5. Step 5: Solve for x
    x = 677,724.04/852.01
  6. Step 6: Final answer
    x = 795.45

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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.