Home / 2,105,989.16-3,158,992.93-666,679.61

Finding the Fourth Proportional to 2,105,989.16, 3,158,992.93 and 666,679.61

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Solution

The fourth proportional to 2,105,989.16, 3,158,992.93 and 666,679.61 is: 1,000,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,989.16 : 3,158,992.93 = 666,679.61 : x
  2. Step 2: Convert to fraction form
    2,105,989.16/3,158,992.93 = 666,679.61/x
  3. Step 3: Cross multiply
    2,105,989.16x = 3,158,992.93 × 666,679.61
  4. Step 4: Simplify right side
    2,105,989.16x = 2,106,036,181,342.75
  5. Step 5: Solve for x
    x = 2,106,036,181,342.75/2,105,989.16
  6. Step 6: Final answer
    x = 1,000,022.33

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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.