Home / 1,128,793.70-1,693,190.55-455,197.70

Finding the Fourth Proportional to 1,128,793.70, 1,693,190.55 and 455,197.70

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Solution

The fourth proportional to 1,128,793.70, 1,693,190.55 and 455,197.70 is: 682,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,793.70 : 1,693,190.55 = 455,197.70 : x
  2. Step 2: Convert to fraction form
    1,128,793.70/1,693,190.55 = 455,197.70/x
  3. Step 3: Cross multiply
    1,128,793.70x = 1,693,190.55 × 455,197.70
  4. Step 4: Simplify right side
    1,128,793.70x = 770,736,444,021.74
  5. Step 5: Solve for x
    x = 770,736,444,021.74/1,128,793.70
  6. Step 6: Final answer
    x = 682,796.55

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Double scale
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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.