Home / 1,286,645.85-1,775,537.01-742,763.25

Finding the Fourth Proportional to 1,286,645.85, 1,775,537.01 and 742,763.25

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Solution

The fourth proportional to 1,286,645.85, 1,775,537.01 and 742,763.25 is: 1,024,993.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,645.85 : 1,775,537.01 = 742,763.25 : x
  2. Step 2: Convert to fraction form
    1,286,645.85/1,775,537.01 = 742,763.25/x
  3. Step 3: Cross multiply
    1,286,645.85x = 1,775,537.01 × 742,763.25
  4. Step 4: Simplify right side
    1,286,645.85x = 1,318,803,640,042.88
  5. Step 5: Solve for x
    x = 1,318,803,640,042.88/1,286,645.85
  6. Step 6: Final answer
    x = 1,024,993.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.