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Finding the Fourth Proportional to 529.40, 794.34 and 346.86

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Solution

The fourth proportional to 529.40, 794.34 and 346.86 is: 520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.40 : 794.34 = 346.86 : x
  2. Step 2: Convert to fraction form
    529.40/794.34 = 346.86/x
  3. Step 3: Cross multiply
    529.40x = 794.34 × 346.86
  4. Step 4: Simplify right side
    529.40x = 275,524.77
  5. Step 5: Solve for x
    x = 275,524.77/529.40
  6. Step 6: Final answer
    x = 520.44

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1.5x scale

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.