Finding the Fourth Proportional to 1,542,200.18, 2,128,302.74 and 853,872.01
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Solution
The fourth proportional to 1,542,200.18, 2,128,302.74 and 853,872.01 is: 1,178,380.19
Step by Step Solution
- Step 1: Write the proportion equation
1,542,200.18 : 2,128,302.74 = 853,872.01 : x - Step 2: Convert to fraction form
1,542,200.18/2,128,302.74 = 853,872.01/x - Step 3: Cross multiply
1,542,200.18x = 2,128,302.74 × 853,872.01 - Step 4: Simplify right side
1,542,200.18x = 1,817,298,139,186.22 - Step 5: Solve for x
x = 1,817,298,139,186.22/1,542,200.18 - Step 6: Final answer
x = 1,178,380.19
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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.