Finding the Fourth Proportional to 3,172,195.84, 4,758,231.04 and 1,278,894.08
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Solution
The fourth proportional to 3,172,195.84, 4,758,231.04 and 1,278,894.08 is: 1,918,315.83
Step by Step Solution
- Step 1: Write the proportion equation
3,172,195.84 : 4,758,231.04 = 1,278,894.08 : x - Step 2: Convert to fraction form
3,172,195.84/4,758,231.04 = 1,278,894.08/x - Step 3: Cross multiply
3,172,195.84x = 4,758,231.04 × 1,278,894.08 - Step 4: Simplify right side
3,172,195.84x = 6,085,273,508,328.24 - Step 5: Solve for x
x = 6,085,273,508,328.24/3,172,195.84 - Step 6: Final answer
x = 1,918,315.83
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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.