Finding the Fourth Proportional to 990,950.76, 1,486,482.66 and 280,923
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Solution
The fourth proportional to 990,950.76, 1,486,482.66 and 280,923 is: 421,400.52
Step by Step Solution
- Step 1: Write the proportion equation
990,950.76 : 1,486,482.66 = 280,923 : x - Step 2: Convert to fraction form
990,950.76/1,486,482.66 = 280,923/x - Step 3: Cross multiply
990,950.76x = 1,486,482.66 × 280,923 - Step 4: Simplify right side
990,950.76x = 417,587,168,295.18 - Step 5: Solve for x
x = 417,587,168,295.18/990,950.76 - Step 6: Final answer
x = 421,400.52
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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.