Home / 1,405,305.89-2,107,643.46-646,418.51

Finding the Fourth Proportional to 1,405,305.89, 2,107,643.46 and 646,418.51

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Solution

The fourth proportional to 1,405,305.89, 2,107,643.46 and 646,418.51 is: 969,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,305.89 : 2,107,643.46 = 646,418.51 : x
  2. Step 2: Convert to fraction form
    1,405,305.89/2,107,643.46 = 646,418.51/x
  3. Step 3: Cross multiply
    1,405,305.89x = 2,107,643.46 × 646,418.51
  4. Step 4: Simplify right side
    1,405,305.89x = 1,362,419,734,486.23
  5. Step 5: Solve for x
    x = 1,362,419,734,486.23/1,405,305.89
  6. Step 6: Final answer
    x = 969,482.69

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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.