Home / 455,203.20-682,804.80-313,485.60

Finding the Fourth Proportional to 455,203.20, 682,804.80 and 313,485.60

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Solution

The fourth proportional to 455,203.20, 682,804.80 and 313,485.60 is: 470,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,203.20 : 682,804.80 = 313,485.60 : x
  2. Step 2: Convert to fraction form
    455,203.20/682,804.80 = 313,485.60/x
  3. Step 3: Cross multiply
    455,203.20x = 682,804.80 × 313,485.60
  4. Step 4: Simplify right side
    455,203.20x = 214,049,472,410.88
  5. Step 5: Solve for x
    x = 214,049,472,410.88/455,203.20
  6. Step 6: Final answer
    x = 470,228.40

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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.