Finding the Fourth Proportional to 2,986,808.68, 4,121,788.44 and 1,628,681.68
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Solution
The fourth proportional to 2,986,808.68, 4,121,788.44 and 1,628,681.68 is: 2,247,576.61
Step by Step Solution
- Step 1: Write the proportion equation
2,986,808.68 : 4,121,788.44 = 1,628,681.68 : x - Step 2: Convert to fraction form
2,986,808.68/4,121,788.44 = 1,628,681.68/x - Step 3: Cross multiply
2,986,808.68x = 4,121,788.44 × 1,628,681.68 - Step 4: Simplify right side
2,986,808.68x = 6,713,081,321,063.78 - Step 5: Solve for x
x = 6,713,081,321,063.78/2,986,808.68 - Step 6: Final answer
x = 2,247,576.61
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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.