Home / 1,538,299.89-2,122,845.73-850,019.21

Finding the Fourth Proportional to 1,538,299.89, 2,122,845.73 and 850,019.21

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Solution

The fourth proportional to 1,538,299.89, 2,122,845.73 and 850,019.21 is: 1,173,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,299.89 : 2,122,845.73 = 850,019.21 : x
  2. Step 2: Convert to fraction form
    1,538,299.89/2,122,845.73 = 850,019.21/x
  3. Step 3: Cross multiply
    1,538,299.89x = 2,122,845.73 × 850,019.21
  4. Step 4: Simplify right side
    1,538,299.89x = 1,804,459,650,366.47
  5. Step 5: Solve for x
    x = 1,804,459,650,366.47/1,538,299.89
  6. Step 6: Final answer
    x = 1,173,022.02

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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.