Finding the Fourth Proportional to 1,347,302.12, 1,859,278.50 and 743,690.12
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Solution
The fourth proportional to 1,347,302.12, 1,859,278.50 and 743,690.12 is: 1,026,293.23
Step by Step Solution
- Step 1: Write the proportion equation
1,347,302.12 : 1,859,278.50 = 743,690.12 : x - Step 2: Convert to fraction form
1,347,302.12/1,859,278.50 = 743,690.12/x - Step 3: Cross multiply
1,347,302.12x = 1,859,278.50 × 743,690.12 - Step 4: Simplify right side
1,347,302.12x = 1,382,727,050,778.42 - Step 5: Solve for x
x = 1,382,727,050,778.42/1,347,302.12 - Step 6: Final answer
x = 1,026,293.23
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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.