Finding the Fourth Proportional to 640,418.09, 960,592.51 and 324,866.80
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Solution
The fourth proportional to 640,418.09, 960,592.51 and 324,866.80 is: 487,282.63
Step by Step Solution
- Step 1: Write the proportion equation
640,418.09 : 960,592.51 = 324,866.80 : x - Step 2: Convert to fraction form
640,418.09/960,592.51 = 324,866.80/x - Step 3: Cross multiply
640,418.09x = 960,592.51 × 324,866.80 - Step 4: Simplify right side
640,418.09x = 312,064,608,400.37 - Step 5: Solve for x
x = 312,064,608,400.37/640,418.09 - Step 6: Final answer
x = 487,282.63
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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.