Home / 1,265,998.98-1,907,885.01-1,139,765.34

Finding the Fourth Proportional to 1,265,998.98, 1,907,885.01 and 1,139,765.34

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Solution

The fourth proportional to 1,265,998.98, 1,907,885.01 and 1,139,765.34 is: 1,717,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,998.98 : 1,907,885.01 = 1,139,765.34 : x
  2. Step 2: Convert to fraction form
    1,265,998.98/1,907,885.01 = 1,139,765.34/x
  3. Step 3: Cross multiply
    1,265,998.98x = 1,907,885.01 × 1,139,765.34
  4. Step 4: Simplify right side
    1,265,998.98x = 2,174,541,207,103.55
  5. Step 5: Solve for x
    x = 2,174,541,207,103.55/1,265,998.98
  6. Step 6: Final answer
    x = 1,717,648.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.