Home / 816,745.96-1,128,261.99-654,480.38

Finding the Fourth Proportional to 816,745.96, 1,128,261.99 and 654,480.38

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Solution

The fourth proportional to 816,745.96, 1,128,261.99 and 654,480.38 is: 904,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,745.96 : 1,128,261.99 = 654,480.38 : x
  2. Step 2: Convert to fraction form
    816,745.96/1,128,261.99 = 654,480.38/x
  3. Step 3: Cross multiply
    816,745.96x = 1,128,261.99 × 654,480.38
  4. Step 4: Simplify right side
    816,745.96x = 738,425,332,682.35
  5. Step 5: Solve for x
    x = 738,425,332,682.35/816,745.96
  6. Step 6: Final answer
    x = 904,106.51

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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.