Home / 1,331,750.25-1,837,815.35-728,138.25

Finding the Fourth Proportional to 1,331,750.25, 1,837,815.35 and 728,138.25

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Solution

The fourth proportional to 1,331,750.25, 1,837,815.35 and 728,138.25 is: 1,004,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,750.25 : 1,837,815.35 = 728,138.25 : x
  2. Step 2: Convert to fraction form
    1,331,750.25/1,837,815.35 = 728,138.25/x
  3. Step 3: Cross multiply
    1,331,750.25x = 1,837,815.35 × 728,138.25
  4. Step 4: Simplify right side
    1,331,750.25x = 1,338,183,649,131.45
  5. Step 5: Solve for x
    x = 1,338,183,649,131.45/1,331,750.25
  6. Step 6: Final answer
    x = 1,004,830.79

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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.