Home / 1,396,961.33-1,927,814.33-816,218.55

Finding the Fourth Proportional to 1,396,961.33, 1,927,814.33 and 816,218.55

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Solution

The fourth proportional to 1,396,961.33, 1,927,814.33 and 816,218.55 is: 1,126,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,961.33 : 1,927,814.33 = 816,218.55 : x
  2. Step 2: Convert to fraction form
    1,396,961.33/1,927,814.33 = 816,218.55/x
  3. Step 3: Cross multiply
    1,396,961.33x = 1,927,814.33 × 816,218.55
  4. Step 4: Simplify right side
    1,396,961.33x = 1,573,517,813,020.73
  5. Step 5: Solve for x
    x = 1,573,517,813,020.73/1,396,961.33
  6. Step 6: Final answer
    x = 1,126,386.10

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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.