Finding the Fourth Proportional to 665,634.20, 997,904.55 and 286,845.80
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Solution
The fourth proportional to 665,634.20, 997,904.55 and 286,845.80 is: 430,033.09
Step by Step Solution
- Step 1: Write the proportion equation
665,634.20 : 997,904.55 = 286,845.80 : x - Step 2: Convert to fraction form
665,634.20/997,904.55 = 286,845.80/x - Step 3: Cross multiply
665,634.20x = 997,904.55 × 286,845.80 - Step 4: Simplify right side
665,634.20x = 286,244,728,968.39 - Step 5: Solve for x
x = 286,244,728,968.39/665,634.20 - Step 6: Final answer
x = 430,033.09
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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.