Finding the Fourth Proportional to 3,784,818.40, 5,676,953.09 and 1,478,878.05
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Solution
The fourth proportional to 3,784,818.40, 5,676,953.09 and 1,478,878.05 is: 2,218,209.82
Step by Step Solution
- Step 1: Write the proportion equation
3,784,818.40 : 5,676,953.09 = 1,478,878.05 : x - Step 2: Convert to fraction form
3,784,818.40/5,676,953.09 = 1,478,878.05/x - Step 3: Cross multiply
3,784,818.40x = 5,676,953.09 × 1,478,878.05 - Step 4: Simplify right side
3,784,818.40x = 8,395,521,337,893.55 - Step 5: Solve for x
x = 8,395,521,337,893.55/3,784,818.40 - Step 6: Final answer
x = 2,218,209.82
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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.