Home / 897,378.26-1,238,398.86-489,494.66

Finding the Fourth Proportional to 897,378.26, 1,238,398.86 and 489,494.66

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Solution

The fourth proportional to 897,378.26, 1,238,398.86 and 489,494.66 is: 675,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,378.26 : 1,238,398.86 = 489,494.66 : x
  2. Step 2: Convert to fraction form
    897,378.26/1,238,398.86 = 489,494.66/x
  3. Step 3: Cross multiply
    897,378.26x = 1,238,398.86 × 489,494.66
  4. Step 4: Simplify right side
    897,378.26x = 606,189,628,920.09
  5. Step 5: Solve for x
    x = 606,189,628,920.09/897,378.26
  6. Step 6: Final answer
    x = 675,511.83

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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.