Finding the Fourth Proportional to 1,281,045.96, 1,920,916.08 and 427,810.68
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Solution
The fourth proportional to 1,281,045.96, 1,920,916.08 and 427,810.68 is: 641,497.99
Step by Step Solution
- Step 1: Write the proportion equation
1,281,045.96 : 1,920,916.08 = 427,810.68 : x - Step 2: Convert to fraction form
1,281,045.96/1,920,916.08 = 427,810.68/x - Step 3: Cross multiply
1,281,045.96x = 1,920,916.08 × 427,810.68 - Step 4: Simplify right side
1,281,045.96x = 821,788,414,407.73 - Step 5: Solve for x
x = 821,788,414,407.73/1,281,045.96 - Step 6: Final answer
x = 641,497.99
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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.