Home / 1,311,659.98-1,810,072.37-730,907.58

Finding the Fourth Proportional to 1,311,659.98, 1,810,072.37 and 730,907.58

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Solution

The fourth proportional to 1,311,659.98, 1,810,072.37 and 730,907.58 is: 1,008,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,659.98 : 1,810,072.37 = 730,907.58 : x
  2. Step 2: Convert to fraction form
    1,311,659.98/1,810,072.37 = 730,907.58/x
  3. Step 3: Cross multiply
    1,311,659.98x = 1,810,072.37 × 730,907.58
  4. Step 4: Simplify right side
    1,311,659.98x = 1,322,995,611,927.03
  5. Step 5: Solve for x
    x = 1,322,995,611,927.03/1,311,659.98
  6. Step 6: Final answer
    x = 1,008,642.21

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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.