Home / 1,214,060.80-1,821,091.20-415,076.80

Finding the Fourth Proportional to 1,214,060.80, 1,821,091.20 and 415,076.80

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Solution

The fourth proportional to 1,214,060.80, 1,821,091.20 and 415,076.80 is: 622,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,060.80 : 1,821,091.20 = 415,076.80 : x
  2. Step 2: Convert to fraction form
    1,214,060.80/1,821,091.20 = 415,076.80/x
  3. Step 3: Cross multiply
    1,214,060.80x = 1,821,091.20 × 415,076.80
  4. Step 4: Simplify right side
    1,214,060.80x = 755,892,707,804.16
  5. Step 5: Solve for x
    x = 755,892,707,804.16/1,214,060.80
  6. Step 6: Final answer
    x = 622,615.20

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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.