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Finding the Fourth Proportional to 619,302.27, 928,730.48 and 214,384.49

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Solution

The fourth proportional to 619,302.27, 928,730.48 and 214,384.49 is: 321,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,302.27 : 928,730.48 = 214,384.49 : x
  2. Step 2: Convert to fraction form
    619,302.27/928,730.48 = 214,384.49/x
  3. Step 3: Cross multiply
    619,302.27x = 928,730.48 × 214,384.49
  4. Step 4: Simplify right side
    619,302.27x = 199,105,405,658.60
  5. Step 5: Solve for x
    x = 199,105,405,658.60/619,302.27
  6. Step 6: Final answer
    x = 321,499.56

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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.