Finding the Fourth Proportional to 726,657.93, 1,089,620.57 and 221,121.95
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Solution
The fourth proportional to 726,657.93, 1,089,620.57 and 221,121.95 is: 331,571.45
Step by Step Solution
- Step 1: Write the proportion equation
726,657.93 : 1,089,620.57 = 221,121.95 : x - Step 2: Convert to fraction form
726,657.93/1,089,620.57 = 221,121.95/x - Step 3: Cross multiply
726,657.93x = 1,089,620.57 × 221,121.95 - Step 4: Simplify right side
726,657.93x = 240,939,020,303.21 - Step 5: Solve for x
x = 240,939,020,303.21/726,657.93 - Step 6: Final answer
x = 331,571.45
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1.5x scale
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.