Finding the Fourth Proportional to 513,073.64, 769,623.60 and 243,138.44
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Solution
The fourth proportional to 513,073.64, 769,623.60 and 243,138.44 is: 364,713.89
Step by Step Solution
- Step 1: Write the proportion equation
513,073.64 : 769,623.60 = 243,138.44 : x - Step 2: Convert to fraction form
513,073.64/769,623.60 = 243,138.44/x - Step 3: Cross multiply
513,073.64x = 769,623.60 × 243,138.44 - Step 4: Simplify right side
513,073.64x = 187,125,081,491.18 - Step 5: Solve for x
x = 187,125,081,491.18/513,073.64 - Step 6: Final answer
x = 364,713.89
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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.