Home / 1,401,749.82-2,102,394.60-390,940.38

Finding the Fourth Proportional to 1,401,749.82, 2,102,394.60 and 390,940.38

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Solution

The fourth proportional to 1,401,749.82, 2,102,394.60 and 390,940.38 is: 586,346.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,749.82 : 2,102,394.60 = 390,940.38 : x
  2. Step 2: Convert to fraction form
    1,401,749.82/2,102,394.60 = 390,940.38/x
  3. Step 3: Cross multiply
    1,401,749.82x = 2,102,394.60 × 390,940.38
  4. Step 4: Simplify right side
    1,401,749.82x = 821,910,943,833.95
  5. Step 5: Solve for x
    x = 821,910,943,833.95/1,401,749.82
  6. Step 6: Final answer
    x = 586,346.39

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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.