Finding the Fourth Proportional to 624,338.30, 861,494.18 and 379,195.49
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Solution
The fourth proportional to 624,338.30, 861,494.18 and 379,195.49 is: 523,233.49
Step by Step Solution
- Step 1: Write the proportion equation
624,338.30 : 861,494.18 = 379,195.49 : x - Step 2: Convert to fraction form
624,338.30/861,494.18 = 379,195.49/x - Step 3: Cross multiply
624,338.30x = 861,494.18 × 379,195.49 - Step 4: Simplify right side
624,338.30x = 326,674,707,975.01 - Step 5: Solve for x
x = 326,674,707,975.01/624,338.30 - Step 6: Final answer
x = 523,233.49
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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.