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Finding the Fourth Proportional to 882,777.60, 1,324,166.40 and 321,830.40

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Solution

The fourth proportional to 882,777.60, 1,324,166.40 and 321,830.40 is: 482,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,777.60 : 1,324,166.40 = 321,830.40 : x
  2. Step 2: Convert to fraction form
    882,777.60/1,324,166.40 = 321,830.40/x
  3. Step 3: Cross multiply
    882,777.60x = 1,324,166.40 × 321,830.40
  4. Step 4: Simplify right side
    882,777.60x = 426,157,002,178.56
  5. Step 5: Solve for x
    x = 426,157,002,178.56/882,777.60
  6. Step 6: Final answer
    x = 482,745.60

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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.