Home / 858,330-1,287,183.96-384,771.60

Finding the Fourth Proportional to 858,330, 1,287,183.96 and 384,771.60

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Solution

The fourth proportional to 858,330, 1,287,183.96 and 384,771.60 is: 577,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,330 : 1,287,183.96 = 384,771.60 : x
  2. Step 2: Convert to fraction form
    858,330/1,287,183.96 = 384,771.60/x
  3. Step 3: Cross multiply
    858,330x = 1,287,183.96 × 384,771.60
  4. Step 4: Simplify right side
    858,330x = 495,271,831,783.54
  5. Step 5: Solve for x
    x = 495,271,831,783.54/858,330
  6. Step 6: Final answer
    x = 577,017.97

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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.