Finding the Fourth Proportional to 1,259,600.74, 1,738,186.20 and 715,664.68
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Solution
The fourth proportional to 1,259,600.74, 1,738,186.20 and 715,664.68 is: 987,581.57
Step by Step Solution
- Step 1: Write the proportion equation
1,259,600.74 : 1,738,186.20 = 715,664.68 : x - Step 2: Convert to fraction form
1,259,600.74/1,738,186.20 = 715,664.68/x - Step 3: Cross multiply
1,259,600.74x = 1,738,186.20 × 715,664.68 - Step 4: Simplify right side
1,259,600.74x = 1,243,958,470,603.42 - Step 5: Solve for x
x = 1,243,958,470,603.42/1,259,600.74 - Step 6: Final answer
x = 987,581.57
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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.