Finding the Fourth Proportional to 486,402.66, 728,109.09 and 414,658.26
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Solution
The fourth proportional to 486,402.66, 728,109.09 and 414,658.26 is: 620,712.99
Step by Step Solution
- Step 1: Write the proportion equation
486,402.66 : 728,109.09 = 414,658.26 : x - Step 2: Convert to fraction form
486,402.66/728,109.09 = 414,658.26/x - Step 3: Cross multiply
486,402.66x = 728,109.09 × 414,658.26 - Step 4: Simplify right side
486,402.66x = 301,916,448,349.58 - Step 5: Solve for x
x = 301,916,448,349.58/486,402.66 - Step 6: Final answer
x = 620,712.99
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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.