Finding the Fourth Proportional to 512,993.24, 707,908.74 and 283,538.78
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Solution
The fourth proportional to 512,993.24, 707,908.74 and 283,538.78 is: 391,271.39
Step by Step Solution
- Step 1: Write the proportion equation
512,993.24 : 707,908.74 = 283,538.78 : x - Step 2: Convert to fraction form
512,993.24/707,908.74 = 283,538.78/x - Step 3: Cross multiply
512,993.24x = 707,908.74 × 283,538.78 - Step 4: Simplify right side
512,993.24x = 200,719,580,490.94 - Step 5: Solve for x
x = 200,719,580,490.94/512,993.24 - Step 6: Final answer
x = 391,271.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.