Finding the Fourth Proportional to 1,226,029.14, 1,691,903.97 and 689,485.14
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Solution
The fourth proportional to 1,226,029.14, 1,691,903.97 and 689,485.14 is: 951,480.36
Step by Step Solution
- Step 1: Write the proportion equation
1,226,029.14 : 1,691,903.97 = 689,485.14 : x - Step 2: Convert to fraction form
1,226,029.14/1,691,903.97 = 689,485.14/x - Step 3: Cross multiply
1,226,029.14x = 1,691,903.97 × 689,485.14 - Step 4: Simplify right side
1,226,029.14x = 1,166,542,645,622.01 - Step 5: Solve for x
x = 1,166,542,645,622.01/1,226,029.14 - Step 6: Final answer
x = 951,480.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.