Home / 856,234.20-1,284,365.70-324,005.88

Finding the Fourth Proportional to 856,234.20, 1,284,365.70 and 324,005.88

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Solution

The fourth proportional to 856,234.20, 1,284,365.70 and 324,005.88 is: 486,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,234.20 : 1,284,365.70 = 324,005.88 : x
  2. Step 2: Convert to fraction form
    856,234.20/1,284,365.70 = 324,005.88/x
  3. Step 3: Cross multiply
    856,234.20x = 1,284,365.70 × 324,005.88
  4. Step 4: Simplify right side
    856,234.20x = 416,142,038,870.32
  5. Step 5: Solve for x
    x = 416,142,038,870.32/856,234.20
  6. Step 6: Final answer
    x = 486,014.27

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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.