Home / 1,422,380.96-2,128,322.61-854,108.14

Finding the Fourth Proportional to 1,422,380.96, 2,128,322.61 and 854,108.14

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Solution

The fourth proportional to 1,422,380.96, 2,128,322.61 and 854,108.14 is: 1,278,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,380.96 : 2,128,322.61 = 854,108.14 : x
  2. Step 2: Convert to fraction form
    1,422,380.96/2,128,322.61 = 854,108.14/x
  3. Step 3: Cross multiply
    1,422,380.96x = 2,128,322.61 × 854,108.14
  4. Step 4: Simplify right side
    1,422,380.96x = 1,817,817,665,747.05
  5. Step 5: Solve for x
    x = 1,817,817,665,747.05/1,422,380.96
  6. Step 6: Final answer
    x = 1,278,010.40

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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.