Finding the Fourth Proportional to 420,074.94, 629,926.92 and 120,487.53
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Solution
The fourth proportional to 420,074.94, 629,926.92 and 120,487.53 is: 180,678.09
Step by Step Solution
- Step 1: Write the proportion equation
420,074.94 : 629,926.92 = 120,487.53 : x - Step 2: Convert to fraction form
420,074.94/629,926.92 = 120,487.53/x - Step 3: Cross multiply
420,074.94x = 629,926.92 × 120,487.53 - Step 4: Simplify right side
420,074.94x = 75,898,338,671.31 - Step 5: Solve for x
x = 75,898,338,671.31/420,074.94 - Step 6: Final answer
x = 180,678.09
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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.