Home / 1,312,173.09-1,798,989.19-1,288,258.25

Finding the Fourth Proportional to 1,312,173.09, 1,798,989.19 and 1,288,258.25

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Solution

The fourth proportional to 1,312,173.09, 1,798,989.19 and 1,288,258.25 is: 1,766,201.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,173.09 : 1,798,989.19 = 1,288,258.25 : x
  2. Step 2: Convert to fraction form
    1,312,173.09/1,798,989.19 = 1,288,258.25/x
  3. Step 3: Cross multiply
    1,312,173.09x = 1,798,989.19 × 1,288,258.25
  4. Step 4: Simplify right side
    1,312,173.09x = 2,317,562,653,462.73
  5. Step 5: Solve for x
    x = 2,317,562,653,462.73/1,312,173.09
  6. Step 6: Final answer
    x = 1,766,201.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.