Home / 1,086,439.60-1,629,659.40-806,503.60

Finding the Fourth Proportional to 1,086,439.60, 1,629,659.40 and 806,503.60

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Solution

The fourth proportional to 1,086,439.60, 1,629,659.40 and 806,503.60 is: 1,209,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,439.60 : 1,629,659.40 = 806,503.60 : x
  2. Step 2: Convert to fraction form
    1,086,439.60/1,629,659.40 = 806,503.60/x
  3. Step 3: Cross multiply
    1,086,439.60x = 1,629,659.40 × 806,503.60
  4. Step 4: Simplify right side
    1,086,439.60x = 1,314,326,172,873.84
  5. Step 5: Solve for x
    x = 1,314,326,172,873.84/1,086,439.60
  6. Step 6: Final answer
    x = 1,209,755.40

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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.