Home / 455,186.20-682,779.30-313,468.60

Finding the Fourth Proportional to 455,186.20, 682,779.30 and 313,468.60

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Solution

The fourth proportional to 455,186.20, 682,779.30 and 313,468.60 is: 470,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,186.20 : 682,779.30 = 313,468.60 : x
  2. Step 2: Convert to fraction form
    455,186.20/682,779.30 = 313,468.60/x
  3. Step 3: Cross multiply
    455,186.20x = 682,779.30 × 313,468.60
  4. Step 4: Simplify right side
    455,186.20x = 214,029,871,279.98
  5. Step 5: Solve for x
    x = 214,029,871,279.98/455,186.20
  6. Step 6: Final answer
    x = 470,202.90

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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.