Home / 3,946,770-5,921,091-1,287,378

Finding the Fourth Proportional to 3,946,770, 5,921,091 and 1,287,378

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Solution

The fourth proportional to 3,946,770, 5,921,091 and 1,287,378 is: 1,931,372.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946,770 : 5,921,091 = 1,287,378 : x
  2. Step 2: Convert to fraction form
    3,946,770/5,921,091 = 1,287,378/x
  3. Step 3: Cross multiply
    3,946,770x = 5,921,091 × 1,287,378
  4. Step 4: Simplify right side
    3,946,770x = 7,622,682,289,398
  5. Step 5: Solve for x
    x = 7,622,682,289,398/3,946,770
  6. Step 6: Final answer
    x = 1,931,372.31

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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.