Home / 685,733.60-1,028,600.40-654,629.60

Finding the Fourth Proportional to 685,733.60, 1,028,600.40 and 654,629.60

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Solution

The fourth proportional to 685,733.60, 1,028,600.40 and 654,629.60 is: 981,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,733.60 : 1,028,600.40 = 654,629.60 : x
  2. Step 2: Convert to fraction form
    685,733.60/1,028,600.40 = 654,629.60/x
  3. Step 3: Cross multiply
    685,733.60x = 1,028,600.40 × 654,629.60
  4. Step 4: Simplify right side
    685,733.60x = 673,352,268,411.84
  5. Step 5: Solve for x
    x = 673,352,268,411.84/685,733.60
  6. Step 6: Final answer
    x = 981,944.40

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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.