Home / 1,253,021.78-1,729,171.74-680,061.96

Finding the Fourth Proportional to 1,253,021.78, 1,729,171.74 and 680,061.96

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Solution

The fourth proportional to 1,253,021.78, 1,729,171.74 and 680,061.96 is: 938,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,021.78 : 1,729,171.74 = 680,061.96 : x
  2. Step 2: Convert to fraction form
    1,253,021.78/1,729,171.74 = 680,061.96/x
  3. Step 3: Cross multiply
    1,253,021.78x = 1,729,171.74 × 680,061.96
  4. Step 4: Simplify right side
    1,253,021.78x = 1,175,943,922,681.01
  5. Step 5: Solve for x
    x = 1,175,943,922,681.01/1,253,021.78
  6. Step 6: Final answer
    x = 938,486.42

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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.