Home / 1,511,997.90-2,268,328.74-1,111,424.28

Finding the Fourth Proportional to 1,511,997.90, 2,268,328.74 and 1,111,424.28

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Solution

The fourth proportional to 1,511,997.90, 2,268,328.74 and 1,111,424.28 is: 1,667,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,997.90 : 2,268,328.74 = 1,111,424.28 : x
  2. Step 2: Convert to fraction form
    1,511,997.90/2,268,328.74 = 1,111,424.28/x
  3. Step 3: Cross multiply
    1,511,997.90x = 2,268,328.74 × 1,111,424.28
  4. Step 4: Simplify right side
    1,511,997.90x = 2,521,075,636,657.81
  5. Step 5: Solve for x
    x = 2,521,075,636,657.81/1,511,997.90
  6. Step 6: Final answer
    x = 1,667,380.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.