Home / 897,119.40-1,238,054.64-489,243.50

Finding the Fourth Proportional to 897,119.40, 1,238,054.64 and 489,243.50

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Solution

The fourth proportional to 897,119.40, 1,238,054.64 and 489,243.50 is: 675,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,119.40 : 1,238,054.64 = 489,243.50 : x
  2. Step 2: Convert to fraction form
    897,119.40/1,238,054.64 = 489,243.50/x
  3. Step 3: Cross multiply
    897,119.40x = 1,238,054.64 × 489,243.50
  4. Step 4: Simplify right side
    897,119.40x = 605,710,179,074.57
  5. Step 5: Solve for x
    x = 605,710,179,074.57/897,119.40
  6. Step 6: Final answer
    x = 675,172.31

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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.