Home / 811,966.55-1,120,516.23-449,415.59

Finding the Fourth Proportional to 811,966.55, 1,120,516.23 and 449,415.59

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Solution

The fourth proportional to 811,966.55, 1,120,516.23 and 449,415.59 is: 620,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,966.55 : 1,120,516.23 = 449,415.59 : x
  2. Step 2: Convert to fraction form
    811,966.55/1,120,516.23 = 449,415.59/x
  3. Step 3: Cross multiply
    811,966.55x = 1,120,516.23 × 449,415.59
  4. Step 4: Simplify right side
    811,966.55x = 503,577,462,610.03
  5. Step 5: Solve for x
    x = 503,577,462,610.03/811,966.55
  6. Step 6: Final answer
    x = 620,194.84

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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.