Home / 1,380,036.49-1,905,137.62-1,069,241.92

Finding the Fourth Proportional to 1,380,036.49, 1,905,137.62 and 1,069,241.92

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Solution

The fourth proportional to 1,380,036.49, 1,905,137.62 and 1,069,241.92 is: 1,476,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,036.49 : 1,905,137.62 = 1,069,241.92 : x
  2. Step 2: Convert to fraction form
    1,380,036.49/1,905,137.62 = 1,069,241.92/x
  3. Step 3: Cross multiply
    1,380,036.49x = 1,905,137.62 × 1,069,241.92
  4. Step 4: Simplify right side
    1,380,036.49x = 2,037,052,999,237.08
  5. Step 5: Solve for x
    x = 2,037,052,999,237.08/1,380,036.49
  6. Step 6: Final answer
    x = 1,476,086.33

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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.