Finding the Fourth Proportional to 1,215,245.79, 1,676,988.12 and 698,960.70
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Solution
The fourth proportional to 1,215,245.79, 1,676,988.12 and 698,960.70 is: 964,536.39
Step by Step Solution
- Step 1: Write the proportion equation
1,215,245.79 : 1,676,988.12 = 698,960.70 : x - Step 2: Convert to fraction form
1,215,245.79/1,676,988.12 = 698,960.70/x - Step 3: Cross multiply
1,215,245.79x = 1,676,988.12 × 698,960.70 - Step 4: Simplify right side
1,215,245.79x = 1,172,148,790,246.88 - Step 5: Solve for x
x = 1,172,148,790,246.88/1,215,245.79 - Step 6: Final answer
x = 964,536.39
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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.