Home / 721,940.10-996,332.66-411,849.51

Finding the Fourth Proportional to 721,940.10, 996,332.66 and 411,849.51

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Solution

The fourth proportional to 721,940.10, 996,332.66 and 411,849.51 is: 568,383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,940.10 : 996,332.66 = 411,849.51 : x
  2. Step 2: Convert to fraction form
    721,940.10/996,332.66 = 411,849.51/x
  3. Step 3: Cross multiply
    721,940.10x = 996,332.66 × 411,849.51
  4. Step 4: Simplify right side
    721,940.10x = 410,339,117,818.00
  5. Step 5: Solve for x
    x = 410,339,117,818.00/721,940.10
  6. Step 6: Final answer
    x = 568,383.88

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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.