Finding the Fourth Proportional to 613,881.39, 847,286.97 and 412,560.75
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Solution
The fourth proportional to 613,881.39, 847,286.97 and 412,560.75 is: 569,421.64
Step by Step Solution
- Step 1: Write the proportion equation
613,881.39 : 847,286.97 = 412,560.75 : x - Step 2: Convert to fraction form
613,881.39/847,286.97 = 412,560.75/x - Step 3: Cross multiply
613,881.39x = 847,286.97 × 412,560.75 - Step 4: Simplify right side
613,881.39x = 349,557,347,808.43 - Step 5: Solve for x
x = 349,557,347,808.43/613,881.39 - Step 6: Final answer
x = 569,421.64
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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.