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Finding the Fourth Proportional to 884,529.60, 1,326,794.40 and 323,620.80

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Solution

The fourth proportional to 884,529.60, 1,326,794.40 and 323,620.80 is: 485,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,529.60 : 1,326,794.40 = 323,620.80 : x
  2. Step 2: Convert to fraction form
    884,529.60/1,326,794.40 = 323,620.80/x
  3. Step 3: Cross multiply
    884,529.60x = 1,326,794.40 × 323,620.80
  4. Step 4: Simplify right side
    884,529.60x = 429,378,265,163.52
  5. Step 5: Solve for x
    x = 429,378,265,163.52/884,529.60
  6. Step 6: Final answer
    x = 485,431.20

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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.