Home / 811,847.69-1,120,351.99-449,296.55

Finding the Fourth Proportional to 811,847.69, 1,120,351.99 and 449,296.55

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Solution

The fourth proportional to 811,847.69, 1,120,351.99 and 449,296.55 is: 620,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,847.69 : 1,120,351.99 = 449,296.55 : x
  2. Step 2: Convert to fraction form
    811,847.69/1,120,351.99 = 449,296.55/x
  3. Step 3: Cross multiply
    811,847.69x = 1,120,351.99 × 449,296.55
  4. Step 4: Simplify right side
    811,847.69x = 503,370,283,892.63
  5. Step 5: Solve for x
    x = 503,370,283,892.63/811,847.69
  6. Step 6: Final answer
    x = 620,030.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.