Home / 897,568.48-1,238,647.98-489,679.48

Finding the Fourth Proportional to 897,568.48, 1,238,647.98 and 489,679.48

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Solution

The fourth proportional to 897,568.48, 1,238,647.98 and 489,679.48 is: 675,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,568.48 : 1,238,647.98 = 489,679.48 : x
  2. Step 2: Convert to fraction form
    897,568.48/1,238,647.98 = 489,679.48/x
  3. Step 3: Cross multiply
    897,568.48x = 1,238,647.98 × 489,679.48
  4. Step 4: Simplify right side
    897,568.48x = 606,540,498,749.45
  5. Step 5: Solve for x
    x = 606,540,498,749.45/897,568.48
  6. Step 6: Final answer
    x = 675,759.58

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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.