Finding the Fourth Proportional to 418,771.20, 578,006.91 and 237,589.19
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Solution
The fourth proportional to 418,771.20, 578,006.91 and 237,589.19 is: 327,931.32
Step by Step Solution
- Step 1: Write the proportion equation
418,771.20 : 578,006.91 = 237,589.19 : x - Step 2: Convert to fraction form
418,771.20/578,006.91 = 237,589.19/x - Step 3: Cross multiply
418,771.20x = 578,006.91 × 237,589.19 - Step 4: Simplify right side
418,771.20x = 137,328,192,838.79 - Step 5: Solve for x
x = 137,328,192,838.79/418,771.20 - Step 6: Final answer
x = 327,931.32
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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.