Finding the Fourth Proportional to 3,126,643.70, 4,689,965.55 and 2,418,055.70
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Solution
The fourth proportional to 3,126,643.70, 4,689,965.55 and 2,418,055.70 is: 3,627,083.55
Step by Step Solution
- Step 1: Write the proportion equation
3,126,643.70 : 4,689,965.55 = 2,418,055.70 : x - Step 2: Convert to fraction form
3,126,643.70/4,689,965.55 = 2,418,055.70/x - Step 3: Cross multiply
3,126,643.70x = 4,689,965.55 × 2,418,055.70 - Step 4: Simplify right side
3,126,643.70x = 11,340,597,930,981.13 - Step 5: Solve for x
x = 11,340,597,930,981.13/3,126,643.70 - Step 6: Final answer
x = 3,627,083.55
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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.