Finding the Fourth Proportional to 397,404.70, 596,107.05 and 390,843.70
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Solution
The fourth proportional to 397,404.70, 596,107.05 and 390,843.70 is: 586,265.55
Step by Step Solution
- Step 1: Write the proportion equation
397,404.70 : 596,107.05 = 390,843.70 : x - Step 2: Convert to fraction form
397,404.70/596,107.05 = 390,843.70/x - Step 3: Cross multiply
397,404.70x = 596,107.05 × 390,843.70 - Step 4: Simplify right side
397,404.70x = 232,984,685,018.09 - Step 5: Solve for x
x = 232,984,685,018.09/397,404.70 - Step 6: Final answer
x = 586,265.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.