Home / 1,214,811.10-1,821,179.85-858,704.86

Finding the Fourth Proportional to 1,214,811.10, 1,821,179.85 and 858,704.86

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Solution

The fourth proportional to 1,214,811.10, 1,821,179.85 and 858,704.86 is: 1,287,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,811.10 : 1,821,179.85 = 858,704.86 : x
  2. Step 2: Convert to fraction form
    1,214,811.10/1,821,179.85 = 858,704.86/x
  3. Step 3: Cross multiply
    1,214,811.10x = 1,821,179.85 × 858,704.86
  4. Step 4: Simplify right side
    1,214,811.10x = 1,563,855,988,129.07
  5. Step 5: Solve for x
    x = 1,563,855,988,129.07/1,214,811.10
  6. Step 6: Final answer
    x = 1,287,324.41

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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.