Home / 2,321,840.79-3,204,079.08-1,289,316.78

Finding the Fourth Proportional to 2,321,840.79, 3,204,079.08 and 1,289,316.78

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Solution

The fourth proportional to 2,321,840.79, 3,204,079.08 and 1,289,316.78 is: 1,779,223.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321,840.79 : 3,204,079.08 = 1,289,316.78 : x
  2. Step 2: Convert to fraction form
    2,321,840.79/3,204,079.08 = 1,289,316.78/x
  3. Step 3: Cross multiply
    2,321,840.79x = 3,204,079.08 × 1,289,316.78
  4. Step 4: Simplify right side
    2,321,840.79x = 4,131,072,922,290.96
  5. Step 5: Solve for x
    x = 4,131,072,922,290.96/2,321,840.79
  6. Step 6: Final answer
    x = 1,779,223.17

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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.