Home / 1,511,156.81-2,085,378.23-822,828.46

Finding the Fourth Proportional to 1,511,156.81, 2,085,378.23 and 822,828.46

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Solution

The fourth proportional to 1,511,156.81, 2,085,378.23 and 822,828.46 is: 1,135,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,156.81 : 2,085,378.23 = 822,828.46 : x
  2. Step 2: Convert to fraction form
    1,511,156.81/2,085,378.23 = 822,828.46/x
  3. Step 3: Cross multiply
    1,511,156.81x = 2,085,378.23 × 822,828.46
  4. Step 4: Simplify right side
    1,511,156.81x = 1,715,908,557,508.43
  5. Step 5: Solve for x
    x = 1,715,908,557,508.43/1,511,156.81
  6. Step 6: Final answer
    x = 1,135,493.38

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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.