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Finding the Fourth Proportional to 307,946.40, 461,919.60 and 276,453.60

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Solution

The fourth proportional to 307,946.40, 461,919.60 and 276,453.60 is: 414,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,946.40 : 461,919.60 = 276,453.60 : x
  2. Step 2: Convert to fraction form
    307,946.40/461,919.60 = 276,453.60/x
  3. Step 3: Cross multiply
    307,946.40x = 461,919.60 × 276,453.60
  4. Step 4: Simplify right side
    307,946.40x = 127,699,336,330.56
  5. Step 5: Solve for x
    x = 127,699,336,330.56/307,946.40
  6. Step 6: Final answer
    x = 414,680.40

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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.