Home / 823,942.80-1,236,643.20-486,561.60

Finding the Fourth Proportional to 823,942.80, 1,236,643.20 and 486,561.60

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Solution

The fourth proportional to 823,942.80, 1,236,643.20 and 486,561.60 is: 730,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,942.80 : 1,236,643.20 = 486,561.60 : x
  2. Step 2: Convert to fraction form
    823,942.80/1,236,643.20 = 486,561.60/x
  3. Step 3: Cross multiply
    823,942.80x = 1,236,643.20 × 486,561.60
  4. Step 4: Simplify right side
    823,942.80x = 601,703,094,021.12
  5. Step 5: Solve for x
    x = 601,703,094,021.12/823,942.80
  6. Step 6: Final answer
    x = 730,272.90

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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.