Finding the Fourth Proportional to 1,643,621.63, 2,465,432.44 and 445,543.94
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Solution
The fourth proportional to 1,643,621.63, 2,465,432.44 and 445,543.94 is: 668,315.91
Step by Step Solution
- Step 1: Write the proportion equation
1,643,621.63 : 2,465,432.44 = 445,543.94 : x - Step 2: Convert to fraction form
1,643,621.63/2,465,432.44 = 445,543.94/x - Step 3: Cross multiply
1,643,621.63x = 2,465,432.44 × 445,543.94 - Step 4: Simplify right side
1,643,621.63x = 1,098,458,488,171.13 - Step 5: Solve for x
x = 1,098,458,488,171.13/1,643,621.63 - Step 6: Final answer
x = 668,315.91
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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.