Home / 800,782.23-1,105,079.57-438,206.16

Finding the Fourth Proportional to 800,782.23, 1,105,079.57 and 438,206.16

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Solution

The fourth proportional to 800,782.23, 1,105,079.57 and 438,206.16 is: 604,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,782.23 : 1,105,079.57 = 438,206.16 : x
  2. Step 2: Convert to fraction form
    800,782.23/1,105,079.57 = 438,206.16/x
  3. Step 3: Cross multiply
    800,782.23x = 1,105,079.57 × 438,206.16
  4. Step 4: Simplify right side
    800,782.23x = 484,252,678,460.44
  5. Step 5: Solve for x
    x = 484,252,678,460.44/800,782.23
  6. Step 6: Final answer
    x = 604,724.55

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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.