Home / 1,427,899.20-1,970,489.40-774,523.60

Finding the Fourth Proportional to 1,427,899.20, 1,970,489.40 and 774,523.60

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Solution

The fourth proportional to 1,427,899.20, 1,970,489.40 and 774,523.60 is: 1,068,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,899.20 : 1,970,489.40 = 774,523.60 : x
  2. Step 2: Convert to fraction form
    1,427,899.20/1,970,489.40 = 774,523.60/x
  3. Step 3: Cross multiply
    1,427,899.20x = 1,970,489.40 × 774,523.60
  4. Step 4: Simplify right side
    1,427,899.20x = 1,526,190,543,849.84
  5. Step 5: Solve for x
    x = 1,526,190,543,849.84/1,427,899.20
  6. Step 6: Final answer
    x = 1,068,836.33

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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.