Finding the Fourth Proportional to 3,312,143.20, 4,965,590.40 and 1,816,235.20
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Solution
The fourth proportional to 3,312,143.20, 4,965,590.40 and 1,816,235.20 is: 2,722,913.69
Step by Step Solution
- Step 1: Write the proportion equation
3,312,143.20 : 4,965,590.40 = 1,816,235.20 : x - Step 2: Convert to fraction form
3,312,143.20/4,965,590.40 = 1,816,235.20/x - Step 3: Cross multiply
3,312,143.20x = 4,965,590.40 × 1,816,235.20 - Step 4: Simplify right side
3,312,143.20x = 9,018,680,073,262.08 - Step 5: Solve for x
x = 9,018,680,073,262.08/3,312,143.20 - Step 6: Final answer
x = 2,722,913.69
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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.