Finding the Fourth Proportional to 513,874.87, 770,918.68 and 154,031.19
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Solution
The fourth proportional to 513,874.87, 770,918.68 and 154,031.19 is: 231,078.67
Step by Step Solution
- Step 1: Write the proportion equation
513,874.87 : 770,918.68 = 154,031.19 : x - Step 2: Convert to fraction form
513,874.87/770,918.68 = 154,031.19/x - Step 3: Cross multiply
513,874.87x = 770,918.68 × 154,031.19 - Step 4: Simplify right side
513,874.87x = 118,745,521,673.63 - Step 5: Solve for x
x = 118,745,521,673.63/513,874.87 - Step 6: Final answer
x = 231,078.67
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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.