Home / 897,112.70-1,238,045.41-489,236.79

Finding the Fourth Proportional to 897,112.70, 1,238,045.41 and 489,236.79

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Solution

The fourth proportional to 897,112.70, 1,238,045.41 and 489,236.79 is: 675,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,112.70 : 1,238,045.41 = 489,236.79 : x
  2. Step 2: Convert to fraction form
    897,112.70/1,238,045.41 = 489,236.79/x
  3. Step 3: Cross multiply
    897,112.70x = 1,238,045.41 × 489,236.79
  4. Step 4: Simplify right side
    897,112.70x = 605,697,367,516.85
  5. Step 5: Solve for x
    x = 605,697,367,516.85/897,112.70
  6. Step 6: Final answer
    x = 675,163.07

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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.