Home / 1,390,540.40-2,085,810.60-548,982.80

Finding the Fourth Proportional to 1,390,540.40, 2,085,810.60 and 548,982.80

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Solution

The fourth proportional to 1,390,540.40, 2,085,810.60 and 548,982.80 is: 823,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,540.40 : 2,085,810.60 = 548,982.80 : x
  2. Step 2: Convert to fraction form
    1,390,540.40/2,085,810.60 = 548,982.80/x
  3. Step 3: Cross multiply
    1,390,540.40x = 2,085,810.60 × 548,982.80
  4. Step 4: Simplify right side
    1,390,540.40x = 1,145,074,143,457.68
  5. Step 5: Solve for x
    x = 1,145,074,143,457.68/1,390,540.40
  6. Step 6: Final answer
    x = 823,474.20

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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.