Finding the Fourth Proportional to 5,329,338.79, 7,993,933.80 and 1,285,792.60
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Solution
The fourth proportional to 5,329,338.79, 7,993,933.80 and 1,285,792.60 is: 1,928,670.95
Step by Step Solution
- Step 1: Write the proportion equation
5,329,338.79 : 7,993,933.80 = 1,285,792.60 : x - Step 2: Convert to fraction form
5,329,338.79/7,993,933.80 = 1,285,792.60/x - Step 3: Cross multiply
5,329,338.79x = 7,993,933.80 × 1,285,792.60 - Step 4: Simplify right side
5,329,338.79x = 10,278,540,924,929.88 - Step 5: Solve for x
x = 10,278,540,924,929.88/5,329,338.79 - Step 6: Final answer
x = 1,928,670.95
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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.