Finding the Fourth Proportional to 1,211,841.42, 1,672,437.42 and 668,073.84
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Solution
The fourth proportional to 1,211,841.42, 1,672,437.42 and 668,073.84 is: 921,994.97
Step by Step Solution
- Step 1: Write the proportion equation
1,211,841.42 : 1,672,437.42 = 668,073.84 : x - Step 2: Convert to fraction form
1,211,841.42/1,672,437.42 = 668,073.84/x - Step 3: Cross multiply
1,211,841.42x = 1,672,437.42 × 668,073.84 - Step 4: Simplify right side
1,211,841.42x = 1,117,311,689,339.09 - Step 5: Solve for x
x = 1,117,311,689,339.09/1,211,841.42 - Step 6: Final answer
x = 921,994.97
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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.