Home / 809,623.80-1,213,658.10-629,609.40

Finding the Fourth Proportional to 809,623.80, 1,213,658.10 and 629,609.40

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Solution

The fourth proportional to 809,623.80, 1,213,658.10 and 629,609.40 is: 943,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,623.80 : 1,213,658.10 = 629,609.40 : x
  2. Step 2: Convert to fraction form
    809,623.80/1,213,658.10 = 629,609.40/x
  3. Step 3: Cross multiply
    809,623.80x = 1,213,658.10 × 629,609.40
  4. Step 4: Simplify right side
    809,623.80x = 764,130,548,146.14
  5. Step 5: Solve for x
    x = 764,130,548,146.14/809,623.80
  6. Step 6: Final answer
    x = 943,809.39

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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.