Finding the Fourth Proportional to 1,122,447.05, 1,548,944.45 and 613,149.42
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Solution
The fourth proportional to 1,122,447.05, 1,548,944.45 and 613,149.42 is: 846,128.46
Step by Step Solution
- Step 1: Write the proportion equation
1,122,447.05 : 1,548,944.45 = 613,149.42 : x - Step 2: Convert to fraction form
1,122,447.05/1,548,944.45 = 613,149.42/x - Step 3: Cross multiply
1,122,447.05x = 1,548,944.45 × 613,149.42 - Step 4: Simplify right side
1,122,447.05x = 949,734,391,129.72 - Step 5: Solve for x
x = 949,734,391,129.72/1,122,447.05 - Step 6: Final answer
x = 846,128.46
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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.