Finding the Fourth Proportional to 3,837,521.20, 5,756,202.75 and 1,278,921.96
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Solution
The fourth proportional to 3,837,521.20, 5,756,202.75 and 1,278,921.96 is: 1,918,356.60
Step by Step Solution
- Step 1: Write the proportion equation
3,837,521.20 : 5,756,202.75 = 1,278,921.96 : x - Step 2: Convert to fraction form
3,837,521.20/5,756,202.75 = 1,278,921.96/x - Step 3: Cross multiply
3,837,521.20x = 5,756,202.75 × 1,278,921.96 - Step 4: Simplify right side
3,837,521.20x = 7,361,734,103,187.39 - Step 5: Solve for x
x = 7,361,734,103,187.39/3,837,521.20 - Step 6: Final answer
x = 1,918,356.60
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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.