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Finding the Fourth Proportional to 529.40, 794.10 and 433.40

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Solution

The fourth proportional to 529.40, 794.10 and 433.40 is: 650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.40 : 794.10 = 433.40 : x
  2. Step 2: Convert to fraction form
    529.40/794.10 = 433.40/x
  3. Step 3: Cross multiply
    529.40x = 794.10 × 433.40
  4. Step 4: Simplify right side
    529.40x = 344,162.94
  5. Step 5: Solve for x
    x = 344,162.94/529.40
  6. Step 6: Final answer
    x = 650.10

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Double scale
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Similar ratio
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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.