Finding the Fourth Proportional to 4,312,908.60, 6,469,362.90 and 1,320,703.80
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Solution
The fourth proportional to 4,312,908.60, 6,469,362.90 and 1,320,703.80 is: 1,981,055.70
Step by Step Solution
- Step 1: Write the proportion equation
4,312,908.60 : 6,469,362.90 = 1,320,703.80 : x - Step 2: Convert to fraction form
4,312,908.60/6,469,362.90 = 1,320,703.80/x - Step 3: Cross multiply
4,312,908.60x = 6,469,362.90 × 1,320,703.80 - Step 4: Simplify right side
4,312,908.60x = 8,544,112,165,609.02 - Step 5: Solve for x
x = 8,544,112,165,609.02/4,312,908.60 - Step 6: Final answer
x = 1,981,055.70
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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.