Finding the Fourth Proportional to 3,168,561.70, 4,372,616.32 and 1,718,256.75
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Solution
The fourth proportional to 3,168,561.70, 4,372,616.32 and 1,718,256.75 is: 2,371,194.95
Step by Step Solution
- Step 1: Write the proportion equation
3,168,561.70 : 4,372,616.32 = 1,718,256.75 : x - Step 2: Convert to fraction form
3,168,561.70/4,372,616.32 = 1,718,256.75/x - Step 3: Cross multiply
3,168,561.70x = 4,372,616.32 × 1,718,256.75 - Step 4: Simplify right side
3,168,561.70x = 7,513,277,486,307.21 - Step 5: Solve for x
x = 7,513,277,486,307.21/3,168,561.70 - Step 6: Final answer
x = 2,371,194.95
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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.