Finding the Fourth Proportional to 2,891,585.36, 3,990,339.08 and 1,602,423.12
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Solution
The fourth proportional to 2,891,585.36, 3,990,339.08 and 1,602,423.12 is: 2,211,316.91
Step by Step Solution
- Step 1: Write the proportion equation
2,891,585.36 : 3,990,339.08 = 1,602,423.12 : x - Step 2: Convert to fraction form
2,891,585.36/3,990,339.08 = 1,602,423.12/x - Step 3: Cross multiply
2,891,585.36x = 3,990,339.08 × 1,602,423.12 - Step 4: Simplify right side
2,891,585.36x = 6,394,211,598,431.53 - Step 5: Solve for x
x = 6,394,211,598,431.53/2,891,585.36 - Step 6: Final answer
x = 2,211,316.91
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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.