Home / 1,189,345.62-1,640,676.98-730,563.59

Finding the Fourth Proportional to 1,189,345.62, 1,640,676.98 and 730,563.59

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Solution

The fourth proportional to 1,189,345.62, 1,640,676.98 and 730,563.59 is: 1,007,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,345.62 : 1,640,676.98 = 730,563.59 : x
  2. Step 2: Convert to fraction form
    1,189,345.62/1,640,676.98 = 730,563.59/x
  3. Step 3: Cross multiply
    1,189,345.62x = 1,640,676.98 × 730,563.59
  4. Step 4: Simplify right side
    1,189,345.62x = 1,198,618,864,564.22
  5. Step 5: Solve for x
    x = 1,198,618,864,564.22/1,189,345.62
  6. Step 6: Final answer
    x = 1,007,796.93

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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.