Finding the Fourth Proportional to 420,613.87, 580,480.26 and 239,333.44
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Solution
The fourth proportional to 420,613.87, 580,480.26 and 239,333.44 is: 330,298.99
Step by Step Solution
- Step 1: Write the proportion equation
420,613.87 : 580,480.26 = 239,333.44 : x - Step 2: Convert to fraction form
420,613.87/580,480.26 = 239,333.44/x - Step 3: Cross multiply
420,613.87x = 580,480.26 × 239,333.44 - Step 4: Simplify right side
420,613.87x = 138,928,337,477.89 - Step 5: Solve for x
x = 138,928,337,477.89/420,613.87 - Step 6: Final answer
x = 330,298.99
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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.