Finding the Fourth Proportional to 3,615,342.62, 4,989,615.29 and 2,087,447.18
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Solution
The fourth proportional to 3,615,342.62, 4,989,615.29 and 2,087,447.18 is: 2,880,932.59
Step by Step Solution
- Step 1: Write the proportion equation
3,615,342.62 : 4,989,615.29 = 2,087,447.18 : x - Step 2: Convert to fraction form
3,615,342.62/4,989,615.29 = 2,087,447.18/x - Step 3: Cross multiply
3,615,342.62x = 4,989,615.29 × 2,087,447.18 - Step 4: Simplify right side
3,615,342.62x = 10,415,558,366,395.38 - Step 5: Solve for x
x = 10,415,558,366,395.38/3,615,342.62 - Step 6: Final answer
x = 2,880,932.59
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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.