Home / 439,631.60-659,447.40-203,435.60

Finding the Fourth Proportional to 439,631.60, 659,447.40 and 203,435.60

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Solution

The fourth proportional to 439,631.60, 659,447.40 and 203,435.60 is: 305,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,631.60 : 659,447.40 = 203,435.60 : x
  2. Step 2: Convert to fraction form
    439,631.60/659,447.40 = 203,435.60/x
  3. Step 3: Cross multiply
    439,631.60x = 659,447.40 × 203,435.60
  4. Step 4: Simplify right side
    439,631.60x = 134,155,077,487.44
  5. Step 5: Solve for x
    x = 134,155,077,487.44/439,631.60
  6. Step 6: Final answer
    x = 305,153.40

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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.