Finding the Fourth Proportional to 1,282,872.51, 1,924,672.05 and 642,403.08
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Solution
The fourth proportional to 1,282,872.51, 1,924,672.05 and 642,403.08 is: 963,786.54
Step by Step Solution
- Step 1: Write the proportion equation
1,282,872.51 : 1,924,672.05 = 642,403.08 : x - Step 2: Convert to fraction form
1,282,872.51/1,924,672.05 = 642,403.08/x - Step 3: Cross multiply
1,282,872.51x = 1,924,672.05 × 642,403.08 - Step 4: Simplify right side
1,282,872.51x = 1,236,415,252,909.91 - Step 5: Solve for x
x = 1,236,415,252,909.91/1,282,872.51 - Step 6: Final answer
x = 963,786.54
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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.