Home / 1,393,796.58-1,923,206.12-820,950.82

Finding the Fourth Proportional to 1,393,796.58, 1,923,206.12 and 820,950.82

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Solution

The fourth proportional to 1,393,796.58, 1,923,206.12 and 820,950.82 is: 1,132,774.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,796.58 : 1,923,206.12 = 820,950.82 : x
  2. Step 2: Convert to fraction form
    1,393,796.58/1,923,206.12 = 820,950.82/x
  3. Step 3: Cross multiply
    1,393,796.58x = 1,923,206.12 × 820,950.82
  4. Step 4: Simplify right side
    1,393,796.58x = 1,578,857,641,243.02
  5. Step 5: Solve for x
    x = 1,578,857,641,243.02/1,393,796.58
  6. Step 6: Final answer
    x = 1,132,774.80

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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.