Finding the Fourth Proportional to 665,868.12, 999,512.96 and 286,975.84
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Solution
The fourth proportional to 665,868.12, 999,512.96 and 286,975.84 is: 430,770.09
Step by Step Solution
- Step 1: Write the proportion equation
665,868.12 : 999,512.96 = 286,975.84 : x - Step 2: Convert to fraction form
665,868.12/999,512.96 = 286,975.84/x - Step 3: Cross multiply
665,868.12x = 999,512.96 × 286,975.84 - Step 4: Simplify right side
665,868.12x = 286,836,071,286.89 - Step 5: Solve for x
x = 286,836,071,286.89/665,868.12 - Step 6: Final answer
x = 430,770.09
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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.