Finding the Fourth Proportional to 1,187,119.36, 1,638,189.12 and 677,722.24
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Solution
The fourth proportional to 1,187,119.36, 1,638,189.12 and 677,722.24 is: 935,236.37
Step by Step Solution
- Step 1: Write the proportion equation
1,187,119.36 : 1,638,189.12 = 677,722.24 : x - Step 2: Convert to fraction form
1,187,119.36/1,638,189.12 = 677,722.24/x - Step 3: Cross multiply
1,187,119.36x = 1,638,189.12 × 677,722.24 - Step 4: Simplify right side
1,187,119.36x = 1,110,237,199,950.03 - Step 5: Solve for x
x = 1,110,237,199,950.03/1,187,119.36 - Step 6: Final answer
x = 935,236.37
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1.5x scale
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.