Home / 800,815.41-1,105,125.29-438,239.28

Finding the Fourth Proportional to 800,815.41, 1,105,125.29 and 438,239.28

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Solution

The fourth proportional to 800,815.41, 1,105,125.29 and 438,239.28 is: 604,770.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,815.41 : 1,105,125.29 = 438,239.28 : x
  2. Step 2: Convert to fraction form
    800,815.41/1,105,125.29 = 438,239.28/x
  3. Step 3: Cross multiply
    800,815.41x = 1,105,125.29 × 438,239.28
  4. Step 4: Simplify right side
    800,815.41x = 484,309,309,208.20
  5. Step 5: Solve for x
    x = 484,309,309,208.20/800,815.41
  6. Step 6: Final answer
    x = 604,770.22

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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.