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Finding the Fourth Proportional to 442,733.70, 664,768.80 and 353,722.80

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Solution

The fourth proportional to 442,733.70, 664,768.80 and 353,722.80 is: 531,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,733.70 : 664,768.80 = 353,722.80 : x
  2. Step 2: Convert to fraction form
    442,733.70/664,768.80 = 353,722.80/x
  3. Step 3: Cross multiply
    442,733.70x = 664,768.80 × 353,722.80
  4. Step 4: Simplify right side
    442,733.70x = 235,143,881,288.64
  5. Step 5: Solve for x
    x = 235,143,881,288.64/442,733.70
  6. Step 6: Final answer
    x = 531,118.10

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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.