Finding the Fourth Proportional to 1,112,228.68, 1,534,815.90 and 628,764.99
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Solution
The fourth proportional to 1,112,228.68, 1,534,815.90 and 628,764.99 is: 867,661.95
Step by Step Solution
- Step 1: Write the proportion equation
1,112,228.68 : 1,534,815.90 = 628,764.99 : x - Step 2: Convert to fraction form
1,112,228.68/1,534,815.90 = 628,764.99/x - Step 3: Cross multiply
1,112,228.68x = 1,534,815.90 × 628,764.99 - Step 4: Simplify right side
1,112,228.68x = 965,038,504,015.34 - Step 5: Solve for x
x = 965,038,504,015.34/1,112,228.68 - Step 6: Final answer
x = 867,661.95
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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.