Home / 800,855.80-1,105,166.22-438,272.35

Finding the Fourth Proportional to 800,855.80, 1,105,166.22 and 438,272.35

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Solution

The fourth proportional to 800,855.80, 1,105,166.22 and 438,272.35 is: 604,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,855.80 : 1,105,166.22 = 438,272.35 : x
  2. Step 2: Convert to fraction form
    800,855.80/1,105,166.22 = 438,272.35/x
  3. Step 3: Cross multiply
    800,855.80x = 1,105,166.22 × 438,272.35
  4. Step 4: Simplify right side
    800,855.80x = 484,363,796,380.02
  5. Step 5: Solve for x
    x = 484,363,796,380.02/800,855.80
  6. Step 6: Final answer
    x = 604,807.75

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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.