Home / 2,621,385.29-3,933,021.09-915,779.54

Finding the Fourth Proportional to 2,621,385.29, 3,933,021.09 and 915,779.54

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Solution

The fourth proportional to 2,621,385.29, 3,933,021.09 and 915,779.54 is: 1,373,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621,385.29 : 3,933,021.09 = 915,779.54 : x
  2. Step 2: Convert to fraction form
    2,621,385.29/3,933,021.09 = 915,779.54/x
  3. Step 3: Cross multiply
    2,621,385.29x = 3,933,021.09 × 915,779.54
  4. Step 4: Simplify right side
    2,621,385.29x = 3,601,780,224,945.39
  5. Step 5: Solve for x
    x = 3,601,780,224,945.39/2,621,385.29
  6. Step 6: Final answer
    x = 1,373,998.80

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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.