Finding the Fourth Proportional to 714,279.24, 985,640.20 and 423,840.75
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Solution
The fourth proportional to 714,279.24, 985,640.20 and 423,840.75 is: 584,861.58
Step by Step Solution
- Step 1: Write the proportion equation
714,279.24 : 985,640.20 = 423,840.75 : x - Step 2: Convert to fraction form
714,279.24/985,640.20 = 423,840.75/x - Step 3: Cross multiply
714,279.24x = 985,640.20 × 423,840.75 - Step 4: Simplify right side
714,279.24x = 417,754,481,598.15 - Step 5: Solve for x
x = 417,754,481,598.15/714,279.24 - Step 6: Final answer
x = 584,861.58
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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.