Finding the Fourth Proportional to 1,415,858.19, 2,122,365.19 and 455,608.05
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Solution
The fourth proportional to 1,415,858.19, 2,122,365.19 and 455,608.05 is: 682,954.46
Step by Step Solution
- Step 1: Write the proportion equation
1,415,858.19 : 2,122,365.19 = 455,608.05 : x - Step 2: Convert to fraction form
1,415,858.19/2,122,365.19 = 455,608.05/x - Step 3: Cross multiply
1,415,858.19x = 2,122,365.19 × 455,608.05 - Step 4: Simplify right side
1,415,858.19x = 966,966,664,464.76 - Step 5: Solve for x
x = 966,966,664,464.76/1,415,858.19 - Step 6: Final answer
x = 682,954.46
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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.