Home / 1,642,676.12-2,460,577.14-1,321,089.65

Finding the Fourth Proportional to 1,642,676.12, 2,460,577.14 and 1,321,089.65

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Solution

The fourth proportional to 1,642,676.12, 2,460,577.14 and 1,321,089.65 is: 1,978,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,676.12 : 2,460,577.14 = 1,321,089.65 : x
  2. Step 2: Convert to fraction form
    1,642,676.12/2,460,577.14 = 1,321,089.65/x
  3. Step 3: Cross multiply
    1,642,676.12x = 2,460,577.14 × 1,321,089.65
  4. Step 4: Simplify right side
    1,642,676.12x = 3,250,642,980,377.72
  5. Step 5: Solve for x
    x = 3,250,642,980,377.72/1,642,676.12
  6. Step 6: Final answer
    x = 1,978,870.30

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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.