Finding the Fourth Proportional to 1,550,121.79, 2,321,817.60 and 749,724.90
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Solution
The fourth proportional to 1,550,121.79, 2,321,817.60 and 749,724.90 is: 1,122,959.81
Step by Step Solution
- Step 1: Write the proportion equation
1,550,121.79 : 2,321,817.60 = 749,724.90 : x - Step 2: Convert to fraction form
1,550,121.79/2,321,817.60 = 749,724.90/x - Step 3: Cross multiply
1,550,121.79x = 2,321,817.60 × 749,724.90 - Step 4: Simplify right side
1,550,121.79x = 1,740,724,467,978.24 - Step 5: Solve for x
x = 1,740,724,467,978.24/1,550,121.79 - Step 6: Final answer
x = 1,122,959.81
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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.