Home / 823,896.60-1,235,153.70-429,912.60

Finding the Fourth Proportional to 823,896.60, 1,235,153.70 and 429,912.60

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Solution

The fourth proportional to 823,896.60, 1,235,153.70 and 429,912.60 is: 644,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,896.60 : 1,235,153.70 = 429,912.60 : x
  2. Step 2: Convert to fraction form
    823,896.60/1,235,153.70 = 429,912.60/x
  3. Step 3: Cross multiply
    823,896.60x = 1,235,153.70 × 429,912.60
  4. Step 4: Simplify right side
    823,896.60x = 531,008,138,566.62
  5. Step 5: Solve for x
    x = 531,008,138,566.62/823,896.60
  6. Step 6: Final answer
    x = 644,508.23

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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.