Home / 823,530.40-1,235,353.20-324,829.60

Finding the Fourth Proportional to 823,530.40, 1,235,353.20 and 324,829.60

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Solution

The fourth proportional to 823,530.40, 1,235,353.20 and 324,829.60 is: 487,267.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,530.40 : 1,235,353.20 = 324,829.60 : x
  2. Step 2: Convert to fraction form
    823,530.40/1,235,353.20 = 324,829.60/x
  3. Step 3: Cross multiply
    823,530.40x = 1,235,353.20 × 324,829.60
  4. Step 4: Simplify right side
    823,530.40x = 401,279,285,814.72
  5. Step 5: Solve for x
    x = 401,279,285,814.72/823,530.40
  6. Step 6: Final answer
    x = 487,267.12

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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.