Home / 897,101.28-1,237,989.96-489,201.84

Finding the Fourth Proportional to 897,101.28, 1,237,989.96 and 489,201.84

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Solution

The fourth proportional to 897,101.28, 1,237,989.96 and 489,201.84 is: 675,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,101.28 : 1,237,989.96 = 489,201.84 : x
  2. Step 2: Convert to fraction form
    897,101.28/1,237,989.96 = 489,201.84/x
  3. Step 3: Cross multiply
    897,101.28x = 1,237,989.96 × 489,201.84
  4. Step 4: Simplify right side
    897,101.28x = 605,626,966,333.53
  5. Step 5: Solve for x
    x = 605,626,966,333.53/897,101.28
  6. Step 6: Final answer
    x = 675,093.19

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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.