Finding the Fourth Proportional to 1,180,820.08, 1,629,530.76 and 644,276.08
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Solution
The fourth proportional to 1,180,820.08, 1,629,530.76 and 644,276.08 is: 889,100.47
Step by Step Solution
- Step 1: Write the proportion equation
1,180,820.08 : 1,629,530.76 = 644,276.08 : x - Step 2: Convert to fraction form
1,180,820.08/1,629,530.76 = 644,276.08/x - Step 3: Cross multiply
1,180,820.08x = 1,629,530.76 × 644,276.08 - Step 4: Simplify right side
1,180,820.08x = 1,049,867,690,292.22 - Step 5: Solve for x
x = 1,049,867,690,292.22/1,180,820.08 - Step 6: Final answer
x = 889,100.47
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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.