Finding the Fourth Proportional to 679,487.97, 937,617.21 and 407,566.92
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Solution
The fourth proportional to 679,487.97, 937,617.21 and 407,566.92 is: 562,396.65
Step by Step Solution
- Step 1: Write the proportion equation
679,487.97 : 937,617.21 = 407,566.92 : x - Step 2: Convert to fraction form
679,487.97/937,617.21 = 407,566.92/x - Step 3: Cross multiply
679,487.97x = 937,617.21 × 407,566.92 - Step 4: Simplify right side
679,487.97x = 382,141,758,418.69 - Step 5: Solve for x
x = 382,141,758,418.69/679,487.97 - Step 6: Final answer
x = 562,396.65
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1.5x scale
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.