Home / 1,988,084.40-2,982,515.40-789,802.80

Finding the Fourth Proportional to 1,988,084.40, 2,982,515.40 and 789,802.80

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Solution

The fourth proportional to 1,988,084.40, 2,982,515.40 and 789,802.80 is: 1,184,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,084.40 : 2,982,515.40 = 789,802.80 : x
  2. Step 2: Convert to fraction form
    1,988,084.40/2,982,515.40 = 789,802.80/x
  3. Step 3: Cross multiply
    1,988,084.40x = 2,982,515.40 × 789,802.80
  4. Step 4: Simplify right side
    1,988,084.40x = 2,355,599,013,963.12
  5. Step 5: Solve for x
    x = 2,355,599,013,963.12/1,988,084.40
  6. Step 6: Final answer
    x = 1,184,858.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.