Finding the Fourth Proportional to 1,122,438.74, 1,548,907.72 and 613,042.70
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Solution
The fourth proportional to 1,122,438.74, 1,548,907.72 and 613,042.70 is: 845,967.38
Step by Step Solution
- Step 1: Write the proportion equation
1,122,438.74 : 1,548,907.72 = 613,042.70 : x - Step 2: Convert to fraction form
1,122,438.74/1,548,907.72 = 613,042.70/x - Step 3: Cross multiply
1,122,438.74x = 1,548,907.72 × 613,042.70 - Step 4: Simplify right side
1,122,438.74x = 949,546,561,442.50 - Step 5: Solve for x
x = 949,546,561,442.50/1,122,438.74 - Step 6: Final answer
x = 845,967.38
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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.