Finding the Fourth Proportional to 519,693.62, 716,782.01 and 447,218.67
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Solution
The fourth proportional to 519,693.62, 716,782.01 and 447,218.67 is: 616,821.69
Step by Step Solution
- Step 1: Write the proportion equation
519,693.62 : 716,782.01 = 447,218.67 : x - Step 2: Convert to fraction form
519,693.62/716,782.01 = 447,218.67/x - Step 3: Cross multiply
519,693.62x = 716,782.01 × 447,218.67 - Step 4: Simplify right side
519,693.62x = 320,558,297,192.13 - Step 5: Solve for x
x = 320,558,297,192.13/519,693.62 - Step 6: Final answer
x = 616,821.69
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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.