Finding the Fourth Proportional to 1,215,657.92, 1,677,613.07 and 664,384.88
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Solution
The fourth proportional to 1,215,657.92, 1,677,613.07 and 664,384.88 is: 916,853.95
Step by Step Solution
- Step 1: Write the proportion equation
1,215,657.92 : 1,677,613.07 = 664,384.88 : x - Step 2: Convert to fraction form
1,215,657.92/1,677,613.07 = 664,384.88/x - Step 3: Cross multiply
1,215,657.92x = 1,677,613.07 × 664,384.88 - Step 4: Simplify right side
1,215,657.92x = 1,114,580,764,053.38 - Step 5: Solve for x
x = 1,114,580,764,053.38/1,215,657.92 - Step 6: Final answer
x = 916,853.95
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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.