Home / 1,511,153.81-2,085,374.09-822,825.46

Finding the Fourth Proportional to 1,511,153.81, 2,085,374.09 and 822,825.46

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Solution

The fourth proportional to 1,511,153.81, 2,085,374.09 and 822,825.46 is: 1,135,489.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,153.81 : 2,085,374.09 = 822,825.46 : x
  2. Step 2: Convert to fraction form
    1,511,153.81/2,085,374.09 = 822,825.46/x
  3. Step 3: Cross multiply
    1,511,153.81x = 2,085,374.09 × 822,825.46
  4. Step 4: Simplify right side
    1,511,153.81x = 1,715,898,896,933.40
  5. Step 5: Solve for x
    x = 1,715,898,896,933.40/1,511,153.81
  6. Step 6: Final answer
    x = 1,135,489.25

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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.