Finding the Fourth Proportional to 412,229.62, 617,430.87 and 316,757.05
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Solution
The fourth proportional to 412,229.62, 617,430.87 and 316,757.05 is: 474,433.59
Step by Step Solution
- Step 1: Write the proportion equation
412,229.62 : 617,430.87 = 316,757.05 : x - Step 2: Convert to fraction form
412,229.62/617,430.87 = 316,757.05/x - Step 3: Cross multiply
412,229.62x = 617,430.87 × 316,757.05 - Step 4: Simplify right side
412,229.62x = 195,575,579,416.56 - Step 5: Solve for x
x = 195,575,579,416.56/412,229.62 - Step 6: Final answer
x = 474,433.59
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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.