Home / 1,389,628.40-2,085,133.80-548,207.60

Finding the Fourth Proportional to 1,389,628.40, 2,085,133.80 and 548,207.60

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Solution

The fourth proportional to 1,389,628.40, 2,085,133.80 and 548,207.60 is: 822,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,628.40 : 2,085,133.80 = 548,207.60 : x
  2. Step 2: Convert to fraction form
    1,389,628.40/2,085,133.80 = 548,207.60/x
  3. Step 3: Cross multiply
    1,389,628.40x = 2,085,133.80 × 548,207.60
  4. Step 4: Simplify right side
    1,389,628.40x = 1,143,086,196,176.88
  5. Step 5: Solve for x
    x = 1,143,086,196,176.88/1,389,628.40
  6. Step 6: Final answer
    x = 822,584.08

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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.