Finding the Fourth Proportional to 2,868,274.70, 3,958,068.81 and 1,578,863.24
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Solution
The fourth proportional to 2,868,274.70, 3,958,068.81 and 1,578,863.24 is: 2,178,748.55
Step by Step Solution
- Step 1: Write the proportion equation
2,868,274.70 : 3,958,068.81 = 1,578,863.24 : x - Step 2: Convert to fraction form
2,868,274.70/3,958,068.81 = 1,578,863.24/x - Step 3: Cross multiply
2,868,274.70x = 3,958,068.81 × 1,578,863.24 - Step 4: Simplify right side
2,868,274.70x = 6,249,249,345,499.55 - Step 5: Solve for x
x = 6,249,249,345,499.55/2,868,274.70 - Step 6: Final answer
x = 2,178,748.55
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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.