Finding the Fourth Proportional to 1,385,926.56, 2,078,964.36 and 439,371.09
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Solution
The fourth proportional to 1,385,926.56, 2,078,964.36 and 439,371.09 is: 659,080.26
Step by Step Solution
- Step 1: Write the proportion equation
1,385,926.56 : 2,078,964.36 = 439,371.09 : x - Step 2: Convert to fraction form
1,385,926.56/2,078,964.36 = 439,371.09/x - Step 3: Cross multiply
1,385,926.56x = 2,078,964.36 × 439,371.09 - Step 4: Simplify right side
1,385,926.56x = 913,436,836,924.35 - Step 5: Solve for x
x = 913,436,836,924.35/1,385,926.56 - Step 6: Final answer
x = 659,080.26
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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.