Home / 1,393,074.72-1,922,463.45-812,282.04

Finding the Fourth Proportional to 1,393,074.72, 1,922,463.45 and 812,282.04

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Solution

The fourth proportional to 1,393,074.72, 1,922,463.45 and 812,282.04 is: 1,120,961.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,074.72 : 1,922,463.45 = 812,282.04 : x
  2. Step 2: Convert to fraction form
    1,393,074.72/1,922,463.45 = 812,282.04/x
  3. Step 3: Cross multiply
    1,393,074.72x = 1,922,463.45 × 812,282.04
  4. Step 4: Simplify right side
    1,393,074.72x = 1,561,582,532,991.44
  5. Step 5: Solve for x
    x = 1,561,582,532,991.44/1,393,074.72
  6. Step 6: Final answer
    x = 1,120,961.07

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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.