Finding the Fourth Proportional to 1,268,829.20, 1,903,230.84 and 427,375.28
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Solution
The fourth proportional to 1,268,829.20, 1,903,230.84 and 427,375.28 is: 641,058.55
Step by Step Solution
- Step 1: Write the proportion equation
1,268,829.20 : 1,903,230.84 = 427,375.28 : x - Step 2: Convert to fraction form
1,268,829.20/1,903,230.84 = 427,375.28/x - Step 3: Cross multiply
1,268,829.20x = 1,903,230.84 × 427,375.28 - Step 4: Simplify right side
1,268,829.20x = 813,393,813,149.64 - Step 5: Solve for x
x = 813,393,813,149.64/1,268,829.20 - Step 6: Final answer
x = 641,058.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.