Finding the Fourth Proportional to 664,494.78, 996,839.99 and 215,066.28
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Solution
The fourth proportional to 664,494.78, 996,839.99 and 215,066.28 is: 322,631.08
Step by Step Solution
- Step 1: Write the proportion equation
664,494.78 : 996,839.99 = 215,066.28 : x - Step 2: Convert to fraction form
664,494.78/996,839.99 = 215,066.28/x - Step 3: Cross multiply
664,494.78x = 996,839.99 × 215,066.28 - Step 4: Simplify right side
664,494.78x = 214,386,668,404.54 - Step 5: Solve for x
x = 214,386,668,404.54/664,494.78 - Step 6: Final answer
x = 322,631.08
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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.