Finding the Fourth Proportional to 738,639.93, 1,019,149.52 and 448,244.95
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Solution
The fourth proportional to 738,639.93, 1,019,149.52 and 448,244.95 is: 618,472.69
Step by Step Solution
- Step 1: Write the proportion equation
738,639.93 : 1,019,149.52 = 448,244.95 : x - Step 2: Convert to fraction form
738,639.93/1,019,149.52 = 448,244.95/x - Step 3: Cross multiply
738,639.93x = 1,019,149.52 × 448,244.95 - Step 4: Simplify right side
738,639.93x = 456,828,622,220.10 - Step 5: Solve for x
x = 456,828,622,220.10/738,639.93 - Step 6: Final answer
x = 618,472.69
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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.