Finding the Fourth Proportional to 986,560.70, 1,479,882.21 and 312,627.08
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Solution
The fourth proportional to 986,560.70, 1,479,882.21 and 312,627.08 is: 468,953.66
Step by Step Solution
- Step 1: Write the proportion equation
986,560.70 : 1,479,882.21 = 312,627.08 : x - Step 2: Convert to fraction form
986,560.70/1,479,882.21 = 312,627.08/x - Step 3: Cross multiply
986,560.70x = 1,479,882.21 × 312,627.08 - Step 4: Simplify right side
986,560.70x = 462,651,252,493.11 - Step 5: Solve for x
x = 462,651,252,493.11/986,560.70 - Step 6: Final answer
x = 468,953.66
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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.