Finding the Fourth Proportional to 420,611.94, 580,495.41 and 239,367.96
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Solution
The fourth proportional to 420,611.94, 580,495.41 and 239,367.96 is: 330,356.77
Step by Step Solution
- Step 1: Write the proportion equation
420,611.94 : 580,495.41 = 239,367.96 : x - Step 2: Convert to fraction form
420,611.94/580,495.41 = 239,367.96/x - Step 3: Cross multiply
420,611.94x = 580,495.41 × 239,367.96 - Step 4: Simplify right side
420,611.94x = 138,952,002,081.06 - Step 5: Solve for x
x = 138,952,002,081.06/420,611.94 - Step 6: Final answer
x = 330,356.77
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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.