Finding the Fourth Proportional to 1,326,245.55, 1,989,756.45 and 427,669.08
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Solution
The fourth proportional to 1,326,245.55, 1,989,756.45 and 427,669.08 is: 641,628.78
Step by Step Solution
- Step 1: Write the proportion equation
1,326,245.55 : 1,989,756.45 = 427,669.08 : x - Step 2: Convert to fraction form
1,326,245.55/1,989,756.45 = 427,669.08/x - Step 3: Cross multiply
1,326,245.55x = 1,989,756.45 × 427,669.08 - Step 4: Simplify right side
1,326,245.55x = 850,957,310,395.57 - Step 5: Solve for x
x = 850,957,310,395.57/1,326,245.55 - Step 6: Final answer
x = 641,628.78
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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.