Finding the Fourth Proportional to 1,207,611.13, 1,666,661.04 and 779,137.75
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Solution
The fourth proportional to 1,207,611.13, 1,666,661.04 and 779,137.75 is: 1,075,311.83
Step by Step Solution
- Step 1: Write the proportion equation
1,207,611.13 : 1,666,661.04 = 779,137.75 : x - Step 2: Convert to fraction form
1,207,611.13/1,666,661.04 = 779,137.75/x - Step 3: Cross multiply
1,207,611.13x = 1,666,661.04 × 779,137.75 - Step 4: Simplify right side
1,207,611.13x = 1,298,558,532,718.26 - Step 5: Solve for x
x = 1,298,558,532,718.26/1,207,611.13 - Step 6: Final answer
x = 1,075,311.83
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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.