Finding the Fourth Proportional to 768,440.13, 1,152,715.55 and 295,125.48
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Solution
The fourth proportional to 768,440.13, 1,152,715.55 and 295,125.48 is: 442,709.49
Step by Step Solution
- Step 1: Write the proportion equation
768,440.13 : 1,152,715.55 = 295,125.48 : x - Step 2: Convert to fraction form
768,440.13/1,152,715.55 = 295,125.48/x - Step 3: Cross multiply
768,440.13x = 1,152,715.55 × 295,125.48 - Step 4: Simplify right side
768,440.13x = 340,195,734,679.30 - Step 5: Solve for x
x = 340,195,734,679.30/768,440.13 - Step 6: Final answer
x = 442,709.49
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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.