Finding the Fourth Proportional to 659,981.99, 910,643.41 and 401,685.92
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Solution
The fourth proportional to 659,981.99, 910,643.41 and 401,685.92 is: 554,246.39
Step by Step Solution
- Step 1: Write the proportion equation
659,981.99 : 910,643.41 = 401,685.92 : x - Step 2: Convert to fraction form
659,981.99/910,643.41 = 401,685.92/x - Step 3: Cross multiply
659,981.99x = 910,643.41 × 401,685.92 - Step 4: Simplify right side
659,981.99x = 365,792,635,937.79 - Step 5: Solve for x
x = 365,792,635,937.79/659,981.99 - Step 6: Final answer
x = 554,246.39
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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.