Home / 1,427,576.76-1,970,058.77-783,002.25

Finding the Fourth Proportional to 1,427,576.76, 1,970,058.77 and 783,002.25

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Solution

The fourth proportional to 1,427,576.76, 1,970,058.77 and 783,002.25 is: 1,080,544.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,576.76 : 1,970,058.77 = 783,002.25 : x
  2. Step 2: Convert to fraction form
    1,427,576.76/1,970,058.77 = 783,002.25/x
  3. Step 3: Cross multiply
    1,427,576.76x = 1,970,058.77 × 783,002.25
  4. Step 4: Simplify right side
    1,427,576.76x = 1,542,560,449,542.23
  5. Step 5: Solve for x
    x = 1,542,560,449,542.23/1,427,576.76
  6. Step 6: Final answer
    x = 1,080,544.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.