Finding the Fourth Proportional to 2,619,353.39, 3,929,031.09 and 1,178,353.62
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Solution
The fourth proportional to 2,619,353.39, 3,929,031.09 and 1,178,353.62 is: 1,767,530.89
Step by Step Solution
- Step 1: Write the proportion equation
2,619,353.39 : 3,929,031.09 = 1,178,353.62 : x - Step 2: Convert to fraction form
2,619,353.39/3,929,031.09 = 1,178,353.62/x - Step 3: Cross multiply
2,619,353.39x = 3,929,031.09 × 1,178,353.62 - Step 4: Simplify right side
2,619,353.39x = 4,629,788,007,994.05 - Step 5: Solve for x
x = 4,629,788,007,994.05/2,619,353.39 - Step 6: Final answer
x = 1,767,530.89
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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.