Finding the Fourth Proportional to 1,137,668.18, 1,706,191.22 and 427,641.62
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Solution
The fourth proportional to 1,137,668.18, 1,706,191.22 and 427,641.62 is: 641,345.50
Step by Step Solution
- Step 1: Write the proportion equation
1,137,668.18 : 1,706,191.22 = 427,641.62 : x - Step 2: Convert to fraction form
1,137,668.18/1,706,191.22 = 427,641.62/x - Step 3: Cross multiply
1,137,668.18x = 1,706,191.22 × 427,641.62 - Step 4: Simplify right side
1,137,668.18x = 729,638,369,888.72 - Step 5: Solve for x
x = 729,638,369,888.72/1,137,668.18 - Step 6: Final answer
x = 641,345.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.