Finding the Fourth Proportional to 621,119.07, 857,136.10 and 345,475.05
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Solution
The fourth proportional to 621,119.07, 857,136.10 and 345,475.05 is: 476,751.00
Step by Step Solution
- Step 1: Write the proportion equation
621,119.07 : 857,136.10 = 345,475.05 : x - Step 2: Convert to fraction form
621,119.07/857,136.10 = 345,475.05/x - Step 3: Cross multiply
621,119.07x = 857,136.10 × 345,475.05 - Step 4: Simplify right side
621,119.07x = 296,119,137,004.31 - Step 5: Solve for x
x = 296,119,137,004.31/621,119.07 - Step 6: Final answer
x = 476,751.00
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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.