Finding the Fourth Proportional to 1,229,976.12, 1,697,401.26 and 720,699.96
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Solution
The fourth proportional to 1,229,976.12, 1,697,401.26 and 720,699.96 is: 994,585.99
Step by Step Solution
- Step 1: Write the proportion equation
1,229,976.12 : 1,697,401.26 = 720,699.96 : x - Step 2: Convert to fraction form
1,229,976.12/1,697,401.26 = 720,699.96/x - Step 3: Cross multiply
1,229,976.12x = 1,697,401.26 × 720,699.96 - Step 4: Simplify right side
1,229,976.12x = 1,223,317,020,185.95 - Step 5: Solve for x
x = 1,223,317,020,185.95/1,229,976.12 - Step 6: Final answer
x = 994,585.99
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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.