Home / 808,542.80-1,213,812.60-509,022.80

Finding the Fourth Proportional to 808,542.80, 1,213,812.60 and 509,022.80

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Solution

The fourth proportional to 808,542.80, 1,213,812.60 and 509,022.80 is: 764,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,542.80 : 1,213,812.60 = 509,022.80 : x
  2. Step 2: Convert to fraction form
    808,542.80/1,213,812.60 = 509,022.80/x
  3. Step 3: Cross multiply
    808,542.80x = 1,213,812.60 × 509,022.80
  4. Step 4: Simplify right side
    808,542.80x = 617,858,288,327.28
  5. Step 5: Solve for x
    x = 617,858,288,327.28/808,542.80
  6. Step 6: Final answer
    x = 764,162.75

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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.