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Finding the Fourth Proportional to 550.58, 824.70 and 434.24

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Solution

The fourth proportional to 550.58, 824.70 and 434.24 is: 650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.58 : 824.70 = 434.24 : x
  2. Step 2: Convert to fraction form
    550.58/824.70 = 434.24/x
  3. Step 3: Cross multiply
    550.58x = 824.70 × 434.24
  4. Step 4: Simplify right side
    550.58x = 358,117.73
  5. Step 5: Solve for x
    x = 358,117.73/550.58
  6. Step 6: Final answer
    x = 650.44

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Double scale
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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.