Finding the Fourth Proportional to 1,138,325.21, 1,570,889.35 and 629,027.58
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Solution
The fourth proportional to 1,138,325.21, 1,570,889.35 and 629,027.58 is: 868,058.37
Step by Step Solution
- Step 1: Write the proportion equation
1,138,325.21 : 1,570,889.35 = 629,027.58 : x - Step 2: Convert to fraction form
1,138,325.21/1,570,889.35 = 629,027.58/x - Step 3: Cross multiply
1,138,325.21x = 1,570,889.35 × 629,027.58 - Step 4: Simplify right side
1,138,325.21x = 988,132,726,278.27 - Step 5: Solve for x
x = 988,132,726,278.27/1,138,325.21 - Step 6: Final answer
x = 868,058.37
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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.