Home / 752,383.30-1,038,288.86-430,100.58

Finding the Fourth Proportional to 752,383.30, 1,038,288.86 and 430,100.58

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Solution

The fourth proportional to 752,383.30, 1,038,288.86 and 430,100.58 is: 593,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,383.30 : 1,038,288.86 = 430,100.58 : x
  2. Step 2: Convert to fraction form
    752,383.30/1,038,288.86 = 430,100.58/x
  3. Step 3: Cross multiply
    752,383.30x = 1,038,288.86 × 430,100.58
  4. Step 4: Simplify right side
    752,383.30x = 446,568,640,893.54
  5. Step 5: Solve for x
    x = 446,568,640,893.54/752,383.30
  6. Step 6: Final answer
    x = 593,538.75

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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.