Home / 897,134.13-1,238,015.75-489,224.61

Finding the Fourth Proportional to 897,134.13, 1,238,015.75 and 489,224.61

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Solution

The fourth proportional to 897,134.13, 1,238,015.75 and 489,224.61 is: 675,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,134.13 : 1,238,015.75 = 489,224.61 : x
  2. Step 2: Convert to fraction form
    897,134.13/1,238,015.75 = 489,224.61/x
  3. Step 3: Cross multiply
    897,134.13x = 1,238,015.75 × 489,224.61
  4. Step 4: Simplify right side
    897,134.13x = 605,667,770,021.49
  5. Step 5: Solve for x
    x = 605,667,770,021.49/897,134.13
  6. Step 6: Final answer
    x = 675,113.95

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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.