Home / 1,422,378.83-2,128,319.43-854,106.01

Finding the Fourth Proportional to 1,422,378.83, 2,128,319.43 and 854,106.01

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Solution

The fourth proportional to 1,422,378.83, 2,128,319.43 and 854,106.01 is: 1,278,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,378.83 : 2,128,319.43 = 854,106.01 : x
  2. Step 2: Convert to fraction form
    1,422,378.83/2,128,319.43 = 854,106.01/x
  3. Step 3: Cross multiply
    1,422,378.83x = 2,128,319.43 × 854,106.01
  4. Step 4: Simplify right side
    1,422,378.83x = 1,817,810,427,017.31
  5. Step 5: Solve for x
    x = 1,817,810,427,017.31/1,422,378.83
  6. Step 6: Final answer
    x = 1,278,007.23

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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.