Home / 1,389,633.40-2,085,141.30-548,212.60

Finding the Fourth Proportional to 1,389,633.40, 2,085,141.30 and 548,212.60

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Solution

The fourth proportional to 1,389,633.40, 2,085,141.30 and 548,212.60 is: 822,591.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,633.40 : 2,085,141.30 = 548,212.60 : x
  2. Step 2: Convert to fraction form
    1,389,633.40/2,085,141.30 = 548,212.60/x
  3. Step 3: Cross multiply
    1,389,633.40x = 2,085,141.30 × 548,212.60
  4. Step 4: Simplify right side
    1,389,633.40x = 1,143,100,733,440.38
  5. Step 5: Solve for x
    x = 1,143,100,733,440.38/1,389,633.40
  6. Step 6: Final answer
    x = 822,591.58

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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.