Finding the Fourth Proportional to 1,283,489.88, 1,771,402.80 and 739,520.56
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Solution
The fourth proportional to 1,283,489.88, 1,771,402.80 and 739,520.56 is: 1,020,645.98
Step by Step Solution
- Step 1: Write the proportion equation
1,283,489.88 : 1,771,402.80 = 739,520.56 : x - Step 2: Convert to fraction form
1,283,489.88/1,771,402.80 = 739,520.56/x - Step 3: Cross multiply
1,283,489.88x = 1,771,402.80 × 739,520.56 - Step 4: Simplify right side
1,283,489.88x = 1,309,988,790,641.57 - Step 5: Solve for x
x = 1,309,988,790,641.57/1,283,489.88 - Step 6: Final answer
x = 1,020,645.98
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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.