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Finding the Fourth Proportional to 619,281.62, 928,699.48 and 214,363.81

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Solution

The fourth proportional to 619,281.62, 928,699.48 and 214,363.81 is: 321,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,281.62 : 928,699.48 = 214,363.81 : x
  2. Step 2: Convert to fraction form
    619,281.62/928,699.48 = 214,363.81/x
  3. Step 3: Cross multiply
    619,281.62x = 928,699.48 × 214,363.81
  4. Step 4: Simplify right side
    619,281.62x = 199,079,558,297.58
  5. Step 5: Solve for x
    x = 199,079,558,297.58/619,281.62
  6. Step 6: Final answer
    x = 321,468.54

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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.