Home / 1,188,883.67-1,640,668.74-698,721.55

Finding the Fourth Proportional to 1,188,883.67, 1,640,668.74 and 698,721.55

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Solution

The fourth proportional to 1,188,883.67, 1,640,668.74 and 698,721.55 is: 964,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,883.67 : 1,640,668.74 = 698,721.55 : x
  2. Step 2: Convert to fraction form
    1,188,883.67/1,640,668.74 = 698,721.55/x
  3. Step 3: Cross multiply
    1,188,883.67x = 1,640,668.74 × 698,721.55
  4. Step 4: Simplify right side
    1,188,883.67x = 1,146,370,598,327.47
  5. Step 5: Solve for x
    x = 1,146,370,598,327.47/1,188,883.67
  6. Step 6: Final answer
    x = 964,241.19

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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.