Finding the Fourth Proportional to 439,369.98, 606,642.87 and 347,351.82
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Solution
The fourth proportional to 439,369.98, 606,642.87 and 347,351.82 is: 479,592.40
Step by Step Solution
- Step 1: Write the proportion equation
439,369.98 : 606,642.87 = 347,351.82 : x - Step 2: Convert to fraction form
439,369.98/606,642.87 = 347,351.82/x - Step 3: Cross multiply
439,369.98x = 606,642.87 × 347,351.82 - Step 4: Simplify right side
439,369.98x = 210,718,504,984.52 - Step 5: Solve for x
x = 210,718,504,984.52/439,369.98 - Step 6: Final answer
x = 479,592.40
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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.