Home / 1,389,679.40-2,085,210.30-548,258.60

Finding the Fourth Proportional to 1,389,679.40, 2,085,210.30 and 548,258.60

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Solution

The fourth proportional to 1,389,679.40, 2,085,210.30 and 548,258.60 is: 822,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,679.40 : 2,085,210.30 = 548,258.60 : x
  2. Step 2: Convert to fraction form
    1,389,679.40/2,085,210.30 = 548,258.60/x
  3. Step 3: Cross multiply
    1,389,679.40x = 2,085,210.30 × 548,258.60
  4. Step 4: Simplify right side
    1,389,679.40x = 1,143,234,479,783.58
  5. Step 5: Solve for x
    x = 1,143,234,479,783.58/1,389,679.40
  6. Step 6: Final answer
    x = 822,660.59

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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.