Finding the Fourth Proportional to 714,319.62, 985,758.21 and 392,035.02
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Solution
The fourth proportional to 714,319.62, 985,758.21 and 392,035.02 is: 541,006.75
Step by Step Solution
- Step 1: Write the proportion equation
714,319.62 : 985,758.21 = 392,035.02 : x - Step 2: Convert to fraction form
714,319.62/985,758.21 = 392,035.02/x - Step 3: Cross multiply
714,319.62x = 985,758.21 × 392,035.02 - Step 4: Simplify right side
714,319.62x = 386,451,739,572.51 - Step 5: Solve for x
x = 386,451,739,572.51/714,319.62 - Step 6: Final answer
x = 541,006.75
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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.