Finding the Fourth Proportional to 512,955.09, 707,914.67 and 283,507.44
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Solution
The fourth proportional to 512,955.09, 707,914.67 and 283,507.44 is: 391,260.52
Step by Step Solution
- Step 1: Write the proportion equation
512,955.09 : 707,914.67 = 283,507.44 : x - Step 2: Convert to fraction form
512,955.09/707,914.67 = 283,507.44/x - Step 3: Cross multiply
512,955.09x = 707,914.67 × 283,507.44 - Step 4: Simplify right side
512,955.09x = 200,699,075,830.15 - Step 5: Solve for x
x = 200,699,075,830.15/512,955.09 - Step 6: Final answer
x = 391,260.52
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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.