Home / 2,406,678.09-3,321,220.47-1,318,990.05

Finding the Fourth Proportional to 2,406,678.09, 3,321,220.47 and 1,318,990.05

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Solution

The fourth proportional to 2,406,678.09, 3,321,220.47 and 1,318,990.05 is: 1,820,208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406,678.09 : 3,321,220.47 = 1,318,990.05 : x
  2. Step 2: Convert to fraction form
    2,406,678.09/3,321,220.47 = 1,318,990.05/x
  3. Step 3: Cross multiply
    2,406,678.09x = 3,321,220.47 × 1,318,990.05
  4. Step 4: Simplify right side
    2,406,678.09x = 4,380,656,753,786.32
  5. Step 5: Solve for x
    x = 4,380,656,753,786.32/2,406,678.09
  6. Step 6: Final answer
    x = 1,820,208.85

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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.