Home / 811,968.73-1,120,519.25-449,417.77

Finding the Fourth Proportional to 811,968.73, 1,120,519.25 and 449,417.77

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Solution

The fourth proportional to 811,968.73, 1,120,519.25 and 449,417.77 is: 620,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,968.73 : 1,120,519.25 = 449,417.77 : x
  2. Step 2: Convert to fraction form
    811,968.73/1,120,519.25 = 449,417.77/x
  3. Step 3: Cross multiply
    811,968.73x = 1,120,519.25 × 449,417.77
  4. Step 4: Simplify right side
    811,968.73x = 503,581,262,577.07
  5. Step 5: Solve for x
    x = 503,581,262,577.07/811,968.73
  6. Step 6: Final answer
    x = 620,197.85

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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.