Finding the Fourth Proportional to 1,135,443.75, 1,566,989.79 and 658,515.75
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Solution
The fourth proportional to 1,135,443.75, 1,566,989.79 and 658,515.75 is: 908,796.63
Step by Step Solution
- Step 1: Write the proportion equation
1,135,443.75 : 1,566,989.79 = 658,515.75 : x - Step 2: Convert to fraction form
1,135,443.75/1,566,989.79 = 658,515.75/x - Step 3: Cross multiply
1,135,443.75x = 1,566,989.79 × 658,515.75 - Step 4: Simplify right side
1,135,443.75x = 1,031,887,456,804.19 - Step 5: Solve for x
x = 1,031,887,456,804.19/1,135,443.75 - Step 6: Final answer
x = 908,796.63
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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.