Finding the Fourth Proportional to 990,438.25, 1,486,164.07 and 471,700.75
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Solution
The fourth proportional to 990,438.25, 1,486,164.07 and 471,700.75 is: 707,792.44
Step by Step Solution
- Step 1: Write the proportion equation
990,438.25 : 1,486,164.07 = 471,700.75 : x - Step 2: Convert to fraction form
990,438.25/1,486,164.07 = 471,700.75/x - Step 3: Cross multiply
990,438.25x = 1,486,164.07 × 471,700.75 - Step 4: Simplify right side
990,438.25x = 701,024,704,083.55 - Step 5: Solve for x
x = 701,024,704,083.55/990,438.25 - Step 6: Final answer
x = 707,792.44
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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.