Finding the Fourth Proportional to 1,138,324.21, 1,570,887.97 and 629,026.58
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Solution
The fourth proportional to 1,138,324.21, 1,570,887.97 and 629,026.58 is: 868,056.99
Step by Step Solution
- Step 1: Write the proportion equation
1,138,324.21 : 1,570,887.97 = 629,026.58 : x - Step 2: Convert to fraction form
1,138,324.21/1,570,887.97 = 629,026.58/x - Step 3: Cross multiply
1,138,324.21x = 1,570,887.97 × 629,026.58 - Step 4: Simplify right side
1,138,324.21x = 988,130,289,686.90 - Step 5: Solve for x
x = 988,130,289,686.90/1,138,324.21 - Step 6: Final answer
x = 868,056.99
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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.