Home / 1,230,172.20-1,845,258.30-699,330.60

Finding the Fourth Proportional to 1,230,172.20, 1,845,258.30 and 699,330.60

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Solution

The fourth proportional to 1,230,172.20, 1,845,258.30 and 699,330.60 is: 1,048,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,172.20 : 1,845,258.30 = 699,330.60 : x
  2. Step 2: Convert to fraction form
    1,230,172.20/1,845,258.30 = 699,330.60/x
  3. Step 3: Cross multiply
    1,230,172.20x = 1,845,258.30 × 699,330.60
  4. Step 4: Simplify right side
    1,230,172.20x = 1,290,445,594,093.98
  5. Step 5: Solve for x
    x = 1,290,445,594,093.98/1,230,172.20
  6. Step 6: Final answer
    x = 1,048,995.90

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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.