Finding the Fourth Proportional to 450,658.68, 679,151.36 and 405,724.94
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Solution
The fourth proportional to 450,658.68, 679,151.36 and 405,724.94 is: 611,435.34
Step by Step Solution
- Step 1: Write the proportion equation
450,658.68 : 679,151.36 = 405,724.94 : x - Step 2: Convert to fraction form
450,658.68/679,151.36 = 405,724.94/x - Step 3: Cross multiply
450,658.68x = 679,151.36 × 405,724.94 - Step 4: Simplify right side
450,658.68x = 275,548,644,786.92 - Step 5: Solve for x
x = 275,548,644,786.92/450,658.68 - Step 6: Final answer
x = 611,435.34
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.