Finding the Fourth Proportional to 420,605.36, 580,468.53 and 239,324.93
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Solution
The fourth proportional to 420,605.36, 580,468.53 and 239,324.93 is: 330,287.25
Step by Step Solution
- Step 1: Write the proportion equation
420,605.36 : 580,468.53 = 239,324.93 : x - Step 2: Convert to fraction form
420,605.36/580,468.53 = 239,324.93/x - Step 3: Cross multiply
420,605.36x = 580,468.53 × 239,324.93 - Step 4: Simplify right side
420,605.36x = 138,920,589,135.13 - Step 5: Solve for x
x = 138,920,589,135.13/420,605.36 - Step 6: Final answer
x = 330,287.25
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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.