Finding the Fourth Proportional to 1,439,448.51, 2,157,889.71 and 729,110.91
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Solution
The fourth proportional to 1,439,448.51, 2,157,889.71 and 729,110.91 is: 1,093,016.47
Step by Step Solution
- Step 1: Write the proportion equation
1,439,448.51 : 2,157,889.71 = 729,110.91 : x - Step 2: Convert to fraction form
1,439,448.51/2,157,889.71 = 729,110.91/x - Step 3: Cross multiply
1,439,448.51x = 2,157,889.71 × 729,110.91 - Step 4: Simplify right side
1,439,448.51x = 1,573,340,930,137.74 - Step 5: Solve for x
x = 1,573,340,930,137.74/1,439,448.51 - Step 6: Final answer
x = 1,093,016.47
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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.