Finding the Fourth Proportional to 643,043.22, 886,887.63 and 413,626.74
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Solution
The fourth proportional to 643,043.22, 886,887.63 and 413,626.74 is: 570,475.56
Step by Step Solution
- Step 1: Write the proportion equation
643,043.22 : 886,887.63 = 413,626.74 : x - Step 2: Convert to fraction form
643,043.22/886,887.63 = 413,626.74/x - Step 3: Cross multiply
643,043.22x = 886,887.63 × 413,626.74 - Step 4: Simplify right side
643,043.22x = 366,840,439,143.23 - Step 5: Solve for x
x = 366,840,439,143.23/643,043.22 - Step 6: Final answer
x = 570,475.56
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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.