Home / 828,234.36-1,242,379.20-229,145.40

Finding the Fourth Proportional to 828,234.36, 1,242,379.20 and 229,145.40

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Solution

The fourth proportional to 828,234.36, 1,242,379.20 and 229,145.40 is: 343,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,234.36 : 1,242,379.20 = 229,145.40 : x
  2. Step 2: Convert to fraction form
    828,234.36/1,242,379.20 = 229,145.40/x
  3. Step 3: Cross multiply
    828,234.36x = 1,242,379.20 × 229,145.40
  4. Step 4: Simplify right side
    828,234.36x = 284,685,478,735.68
  5. Step 5: Solve for x
    x = 284,685,478,735.68/828,234.36
  6. Step 6: Final answer
    x = 343,725.75

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1.5x scale

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.