Finding the Fourth Proportional to 743,017.08, 1,025,292.60 and 420,664.26
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Solution
The fourth proportional to 743,017.08, 1,025,292.60 and 420,664.26 is: 580,476.50
Step by Step Solution
- Step 1: Write the proportion equation
743,017.08 : 1,025,292.60 = 420,664.26 : x - Step 2: Convert to fraction form
743,017.08/1,025,292.60 = 420,664.26/x - Step 3: Cross multiply
743,017.08x = 1,025,292.60 × 420,664.26 - Step 4: Simplify right side
743,017.08x = 431,303,952,862.48 - Step 5: Solve for x
x = 431,303,952,862.48/743,017.08 - Step 6: Final answer
x = 580,476.50
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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.