Finding the Fourth Proportional to 512,580.04, 707,357.64 and 283,153.12
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Solution
The fourth proportional to 512,580.04, 707,357.64 and 283,153.12 is: 390,749.75
Step by Step Solution
- Step 1: Write the proportion equation
512,580.04 : 707,357.64 = 283,153.12 : x - Step 2: Convert to fraction form
512,580.04/707,357.64 = 283,153.12/x - Step 3: Cross multiply
512,580.04x = 707,357.64 × 283,153.12 - Step 4: Simplify right side
512,580.04x = 200,290,522,721.84 - Step 5: Solve for x
x = 200,290,522,721.84/512,580.04 - Step 6: Final answer
x = 390,749.75
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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.