Finding the Fourth Proportional to 2,378,959.50, 3,282,876.16 and 1,291,207.70
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Solution
The fourth proportional to 2,378,959.50, 3,282,876.16 and 1,291,207.70 is: 1,781,818.89
Step by Step Solution
- Step 1: Write the proportion equation
2,378,959.50 : 3,282,876.16 = 1,291,207.70 : x - Step 2: Convert to fraction form
2,378,959.50/3,282,876.16 = 1,291,207.70/x - Step 3: Cross multiply
2,378,959.50x = 3,282,876.16 × 1,291,207.70 - Step 4: Simplify right side
2,378,959.50x = 4,238,874,975,938.43 - Step 5: Solve for x
x = 4,238,874,975,938.43/2,378,959.50 - Step 6: Final answer
x = 1,781,818.89
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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.