Home / 886,999.40-1,330,499.10-325,917.80

Finding the Fourth Proportional to 886,999.40, 1,330,499.10 and 325,917.80

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Solution

The fourth proportional to 886,999.40, 1,330,499.10 and 325,917.80 is: 488,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,999.40 : 1,330,499.10 = 325,917.80 : x
  2. Step 2: Convert to fraction form
    886,999.40/1,330,499.10 = 325,917.80/x
  3. Step 3: Cross multiply
    886,999.40x = 1,330,499.10 × 325,917.80
  4. Step 4: Simplify right side
    886,999.40x = 433,633,339,573.98
  5. Step 5: Solve for x
    x = 433,633,339,573.98/886,999.40
  6. Step 6: Final answer
    x = 488,876.70

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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.