Home / 1,298,745.54-1,948,118.31-786,513.92

Finding the Fourth Proportional to 1,298,745.54, 1,948,118.31 and 786,513.92

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Solution

The fourth proportional to 1,298,745.54, 1,948,118.31 and 786,513.92 is: 1,179,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,745.54 : 1,948,118.31 = 786,513.92 : x
  2. Step 2: Convert to fraction form
    1,298,745.54/1,948,118.31 = 786,513.92/x
  3. Step 3: Cross multiply
    1,298,745.54x = 1,948,118.31 × 786,513.92
  4. Step 4: Simplify right side
    1,298,745.54x = 1,532,222,158,881.28
  5. Step 5: Solve for x
    x = 1,532,222,158,881.28/1,298,745.54
  6. Step 6: Final answer
    x = 1,179,770.87

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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.