Finding the Fourth Proportional to 1,270,821, 1,754,126.64 and 818,112
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Solution
The fourth proportional to 1,270,821, 1,754,126.64 and 818,112 is: 1,129,247.99
Step by Step Solution
- Step 1: Write the proportion equation
1,270,821 : 1,754,126.64 = 818,112 : x - Step 2: Convert to fraction form
1,270,821/1,754,126.64 = 818,112/x - Step 3: Cross multiply
1,270,821x = 1,754,126.64 × 818,112 - Step 4: Simplify right side
1,270,821x = 1,435,072,053,703.68 - Step 5: Solve for x
x = 1,435,072,053,703.68/1,270,821 - Step 6: Final answer
x = 1,129,247.99
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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.