Home / 809,687.20-1,214,530.80-248,749.60

Finding the Fourth Proportional to 809,687.20, 1,214,530.80 and 248,749.60

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Solution

The fourth proportional to 809,687.20, 1,214,530.80 and 248,749.60 is: 373,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,687.20 : 1,214,530.80 = 248,749.60 : x
  2. Step 2: Convert to fraction form
    809,687.20/1,214,530.80 = 248,749.60/x
  3. Step 3: Cross multiply
    809,687.20x = 1,214,530.80 × 248,749.60
  4. Step 4: Simplify right side
    809,687.20x = 302,114,050,687.68
  5. Step 5: Solve for x
    x = 302,114,050,687.68/809,687.20
  6. Step 6: Final answer
    x = 373,124.40

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Similar ratio
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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.