Home / 820,216.80-1,229,734.68-504,020.40

Finding the Fourth Proportional to 820,216.80, 1,229,734.68 and 504,020.40

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Solution

The fourth proportional to 820,216.80, 1,229,734.68 and 504,020.40 is: 755,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,216.80 : 1,229,734.68 = 504,020.40 : x
  2. Step 2: Convert to fraction form
    820,216.80/1,229,734.68 = 504,020.40/x
  3. Step 3: Cross multiply
    820,216.80x = 1,229,734.68 × 504,020.40
  4. Step 4: Simplify right side
    820,216.80x = 619,811,365,307.47
  5. Step 5: Solve for x
    x = 619,811,365,307.47/820,216.80
  6. Step 6: Final answer
    x = 755,667.73

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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.