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Finding the Fourth Proportional to 471,379.60, 706,032.60 and 409,171.60

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Solution

The fourth proportional to 471,379.60, 706,032.60 and 409,171.60 is: 612,857.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,379.60 : 706,032.60 = 409,171.60 : x
  2. Step 2: Convert to fraction form
    471,379.60/706,032.60 = 409,171.60/x
  3. Step 3: Cross multiply
    471,379.60x = 706,032.60 × 409,171.60
  4. Step 4: Simplify right side
    471,379.60x = 288,888,488,594.16
  5. Step 5: Solve for x
    x = 288,888,488,594.16/471,379.60
  6. Step 6: Final answer
    x = 612,857.43

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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.