Finding the Fourth Proportional to 1,608,437.84, 2,219,821.36 and 920,173.60
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Solution
The fourth proportional to 1,608,437.84, 2,219,821.36 and 920,173.60 is: 1,269,940.91
Step by Step Solution
- Step 1: Write the proportion equation
1,608,437.84 : 2,219,821.36 = 920,173.60 : x - Step 2: Convert to fraction form
1,608,437.84/2,219,821.36 = 920,173.60/x - Step 3: Cross multiply
1,608,437.84x = 2,219,821.36 × 920,173.60 - Step 4: Simplify right side
1,608,437.84x = 2,042,621,012,188.10 - Step 5: Solve for x
x = 2,042,621,012,188.10/1,608,437.84 - Step 6: Final answer
x = 1,269,940.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.