Home / 1,223,778.60-1,832,039.10-909,628.20

Finding the Fourth Proportional to 1,223,778.60, 1,832,039.10 and 909,628.20

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Solution

The fourth proportional to 1,223,778.60, 1,832,039.10 and 909,628.20 is: 1,361,745.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,778.60 : 1,832,039.10 = 909,628.20 : x
  2. Step 2: Convert to fraction form
    1,223,778.60/1,832,039.10 = 909,628.20/x
  3. Step 3: Cross multiply
    1,223,778.60x = 1,832,039.10 × 909,628.20
  4. Step 4: Simplify right side
    1,223,778.60x = 1,666,474,428,862.62
  5. Step 5: Solve for x
    x = 1,666,474,428,862.62/1,223,778.60
  6. Step 6: Final answer
    x = 1,361,745.03

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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.