Finding the Fourth Proportional to 624,861.18, 862,309.26 and 338,381.76
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Solution
The fourth proportional to 624,861.18, 862,309.26 and 338,381.76 is: 466,967.28
Step by Step Solution
- Step 1: Write the proportion equation
624,861.18 : 862,309.26 = 338,381.76 : x - Step 2: Convert to fraction form
624,861.18/862,309.26 = 338,381.76/x - Step 3: Cross multiply
624,861.18x = 862,309.26 × 338,381.76 - Step 4: Simplify right side
624,861.18x = 291,789,725,063.10 - Step 5: Solve for x
x = 291,789,725,063.10/624,861.18 - Step 6: Final answer
x = 466,967.28
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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.