Home / 1,185,679.82-1,636,239.14-641,813.94

Finding the Fourth Proportional to 1,185,679.82, 1,636,239.14 and 641,813.94

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Solution

The fourth proportional to 1,185,679.82, 1,636,239.14 and 641,813.94 is: 885,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,679.82 : 1,636,239.14 = 641,813.94 : x
  2. Step 2: Convert to fraction form
    1,185,679.82/1,636,239.14 = 641,813.94/x
  3. Step 3: Cross multiply
    1,185,679.82x = 1,636,239.14 × 641,813.94
  4. Step 4: Simplify right side
    1,185,679.82x = 1,050,161,086,016.54
  5. Step 5: Solve for x
    x = 1,050,161,086,016.54/1,185,679.82
  6. Step 6: Final answer
    x = 885,703.77

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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.