Finding the Fourth Proportional to 1,326,250.55, 1,989,763.95 and 427,674.08
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Solution
The fourth proportional to 1,326,250.55, 1,989,763.95 and 427,674.08 is: 641,636.28
Step by Step Solution
- Step 1: Write the proportion equation
1,326,250.55 : 1,989,763.95 = 427,674.08 : x - Step 2: Convert to fraction form
1,326,250.55/1,989,763.95 = 427,674.08/x - Step 3: Cross multiply
1,326,250.55x = 1,989,763.95 × 427,674.08 - Step 4: Simplify right side
1,326,250.55x = 850,970,466,733.42 - Step 5: Solve for x
x = 850,970,466,733.42/1,326,250.55 - Step 6: Final answer
x = 641,636.28
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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.