Home / 1,682,431.70-2,321,743.91-918,485.26

Finding the Fourth Proportional to 1,682,431.70, 2,321,743.91 and 918,485.26

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Solution

The fourth proportional to 1,682,431.70, 2,321,743.91 and 918,485.26 is: 1,267,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682,431.70 : 2,321,743.91 = 918,485.26 : x
  2. Step 2: Convert to fraction form
    1,682,431.70/2,321,743.91 = 918,485.26/x
  3. Step 3: Cross multiply
    1,682,431.70x = 2,321,743.91 × 918,485.26
  4. Step 4: Simplify right side
    1,682,431.70x = 2,132,487,548,432.98
  5. Step 5: Solve for x
    x = 2,132,487,548,432.98/1,682,431.70
  6. Step 6: Final answer
    x = 1,267,503.19

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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.