Finding the Fourth Proportional to 624,480.13, 861,803.42 and 382,715.99
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Solution
The fourth proportional to 624,480.13, 861,803.42 and 382,715.99 is: 528,160.83
Step by Step Solution
- Step 1: Write the proportion equation
624,480.13 : 861,803.42 = 382,715.99 : x - Step 2: Convert to fraction form
624,480.13/861,803.42 = 382,715.99/x - Step 3: Cross multiply
624,480.13x = 861,803.42 × 382,715.99 - Step 4: Simplify right side
624,480.13x = 329,825,946,079.85 - Step 5: Solve for x
x = 329,825,946,079.85/624,480.13 - Step 6: Final answer
x = 528,160.83
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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.