Home / 1,980,676.89-2,733,399.09-1,121,218.65

Finding the Fourth Proportional to 1,980,676.89, 2,733,399.09 and 1,121,218.65

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Solution

The fourth proportional to 1,980,676.89, 2,733,399.09 and 1,121,218.65 is: 1,547,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,676.89 : 2,733,399.09 = 1,121,218.65 : x
  2. Step 2: Convert to fraction form
    1,980,676.89/2,733,399.09 = 1,121,218.65/x
  3. Step 3: Cross multiply
    1,980,676.89x = 2,733,399.09 × 1,121,218.65
  4. Step 4: Simplify right side
    1,980,676.89x = 3,064,738,037,601.03
  5. Step 5: Solve for x
    x = 3,064,738,037,601.03/1,980,676.89
  6. Step 6: Final answer
    x = 1,547,318.52

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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.