Finding the Fourth Proportional to 489,001.57, 674,823.23 and 285,037.09
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Solution
The fourth proportional to 489,001.57, 674,823.23 and 285,037.09 is: 393,351.80
Step by Step Solution
- Step 1: Write the proportion equation
489,001.57 : 674,823.23 = 285,037.09 : x - Step 2: Convert to fraction form
489,001.57/674,823.23 = 285,037.09/x - Step 3: Cross multiply
489,001.57x = 674,823.23 × 285,037.09 - Step 4: Simplify right side
489,001.57x = 192,349,648,318.42 - Step 5: Solve for x
x = 192,349,648,318.42/489,001.57 - Step 6: Final answer
x = 393,351.80
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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.