Home / 743,917.60-1,115,919.60-211,477.60

Finding the Fourth Proportional to 743,917.60, 1,115,919.60 and 211,477.60

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Solution

The fourth proportional to 743,917.60, 1,115,919.60 and 211,477.60 is: 317,228.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,917.60 : 1,115,919.60 = 211,477.60 : x
  2. Step 2: Convert to fraction form
    743,917.60/1,115,919.60 = 211,477.60/x
  3. Step 3: Cross multiply
    743,917.60x = 1,115,919.60 × 211,477.60
  4. Step 4: Simplify right side
    743,917.60x = 235,991,998,800.96
  5. Step 5: Solve for x
    x = 235,991,998,800.96/743,917.60
  6. Step 6: Final answer
    x = 317,228.68

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1.5x scale

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.