Finding the Fourth Proportional to 640,326.26, 960,454.64 and 324,774.92
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Solution
The fourth proportional to 640,326.26, 960,454.64 and 324,774.92 is: 487,144.75
Step by Step Solution
- Step 1: Write the proportion equation
640,326.26 : 960,454.64 = 324,774.92 : x - Step 2: Convert to fraction form
640,326.26/960,454.64 = 324,774.92/x - Step 3: Cross multiply
640,326.26x = 960,454.64 × 324,774.92 - Step 4: Simplify right side
640,326.26x = 311,931,578,869.63 - Step 5: Solve for x
x = 311,931,578,869.63/640,326.26 - Step 6: Final answer
x = 487,144.75
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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.