Home / 1,393,805.58-1,923,218.55-820,959.81

Finding the Fourth Proportional to 1,393,805.58, 1,923,218.55 and 820,959.81

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Solution

The fourth proportional to 1,393,805.58, 1,923,218.55 and 820,959.81 is: 1,132,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,805.58 : 1,923,218.55 = 820,959.81 : x
  2. Step 2: Convert to fraction form
    1,393,805.58/1,923,218.55 = 820,959.81/x
  3. Step 3: Cross multiply
    1,393,805.58x = 1,923,218.55 × 820,959.81
  4. Step 4: Simplify right side
    1,393,805.58x = 1,578,885,135,396.48
  5. Step 5: Solve for x
    x = 1,578,885,135,396.48/1,393,805.58
  6. Step 6: Final answer
    x = 1,132,787.21

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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.