Finding the Fourth Proportional to 3,988,478.90, 5,983,977.26 and 3,033,508.96
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Solution
The fourth proportional to 3,988,478.90, 5,983,977.26 and 3,033,508.96 is: 4,551,220.93
Step by Step Solution
- Step 1: Write the proportion equation
3,988,478.90 : 5,983,977.26 = 3,033,508.96 : x - Step 2: Convert to fraction form
3,988,478.90/5,983,977.26 = 3,033,508.96/x - Step 3: Cross multiply
3,988,478.90x = 5,983,977.26 × 3,033,508.96 - Step 4: Simplify right side
3,988,478.90x = 18,152,448,634,646.25 - Step 5: Solve for x
x = 18,152,448,634,646.25/3,988,478.90 - Step 6: Final answer
x = 4,551,220.93
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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.