Finding the Fourth Proportional to 1,259,427.63, 1,738,010.63 and 715,564.14
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Solution
The fourth proportional to 1,259,427.63, 1,738,010.63 and 715,564.14 is: 987,478.79
Step by Step Solution
- Step 1: Write the proportion equation
1,259,427.63 : 1,738,010.63 = 715,564.14 : x - Step 2: Convert to fraction form
1,259,427.63/1,738,010.63 = 715,564.14/x - Step 3: Cross multiply
1,259,427.63x = 1,738,010.63 × 715,564.14 - Step 4: Simplify right side
1,259,427.63x = 1,243,658,077,038.18 - Step 5: Solve for x
x = 1,243,658,077,038.18/1,259,427.63 - Step 6: Final answer
x = 987,478.79
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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.