Finding the Fourth Proportional to 4,157,515.49, 6,236,287.69 and 1,278,862.79
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Solution
The fourth proportional to 4,157,515.49, 6,236,287.69 and 1,278,862.79 is: 1,918,298.63
Step by Step Solution
- Step 1: Write the proportion equation
4,157,515.49 : 6,236,287.69 = 1,278,862.79 : x - Step 2: Convert to fraction form
4,157,515.49/6,236,287.69 = 1,278,862.79/x - Step 3: Cross multiply
4,157,515.49x = 6,236,287.69 × 1,278,862.79 - Step 4: Simplify right side
4,157,515.49x = 7,975,356,268,081.74 - Step 5: Solve for x
x = 7,975,356,268,081.74/4,157,515.49 - Step 6: Final answer
x = 1,918,298.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.