Finding the Fourth Proportional to 2,081,786.08, 2,871,756.64 and 1,266,239.20
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Solution
The fourth proportional to 2,081,786.08, 2,871,756.64 and 1,266,239.20 is: 1,746,736.07
Step by Step Solution
- Step 1: Write the proportion equation
2,081,786.08 : 2,871,756.64 = 1,266,239.20 : x - Step 2: Convert to fraction form
2,081,786.08/2,871,756.64 = 1,266,239.20/x - Step 3: Cross multiply
2,081,786.08x = 2,871,756.64 × 1,266,239.20 - Step 4: Simplify right side
2,081,786.08x = 3,636,330,830,428.29 - Step 5: Solve for x
x = 3,636,330,830,428.29/2,081,786.08 - Step 6: Final answer
x = 1,746,736.07
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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.