Finding the Fourth Proportional to 2,180,293.42, 3,008,804.94 and 1,213,652.05
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Solution
The fourth proportional to 2,180,293.42, 3,008,804.94 and 1,213,652.05 is: 1,674,839.84
Step by Step Solution
- Step 1: Write the proportion equation
2,180,293.42 : 3,008,804.94 = 1,213,652.05 : x - Step 2: Convert to fraction form
2,180,293.42/3,008,804.94 = 1,213,652.05/x - Step 3: Cross multiply
2,180,293.42x = 3,008,804.94 × 1,213,652.05 - Step 4: Simplify right side
2,180,293.42x = 3,651,642,283,481.13 - Step 5: Solve for x
x = 3,651,642,283,481.13/2,180,293.42 - Step 6: Final answer
x = 1,674,839.84
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1.5x scale
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.