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Finding the Fourth Proportional to 529.85, 793.55 and 499.88

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Solution

The fourth proportional to 529.85, 793.55 and 499.88 is: 748.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.85 : 793.55 = 499.88 : x
  2. Step 2: Convert to fraction form
    529.85/793.55 = 499.88/x
  3. Step 3: Cross multiply
    529.85x = 793.55 × 499.88
  4. Step 4: Simplify right side
    529.85x = 396,677.06
  5. Step 5: Solve for x
    x = 396,677.06/529.85
  6. Step 6: Final answer
    x = 748.67

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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.