Finding the Fourth Proportional to 879,268.60, 1,318,878.18 and 280,265.68
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Solution
The fourth proportional to 879,268.60, 1,318,878.18 and 280,265.68 is: 420,390.64
Step by Step Solution
- Step 1: Write the proportion equation
879,268.60 : 1,318,878.18 = 280,265.68 : x - Step 2: Convert to fraction form
879,268.60/1,318,878.18 = 280,265.68/x - Step 3: Cross multiply
879,268.60x = 1,318,878.18 × 280,265.68 - Step 4: Simplify right side
879,268.60x = 369,636,289,954.86 - Step 5: Solve for x
x = 369,636,289,954.86/879,268.60 - Step 6: Final answer
x = 420,390.64
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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.