Finding the Fourth Proportional to 472,829.20, 709,704.60 and 236,438.80
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Solution
The fourth proportional to 472,829.20, 709,704.60 and 236,438.80 is: 354,888.62
Step by Step Solution
- Step 1: Write the proportion equation
472,829.20 : 709,704.60 = 236,438.80 : x - Step 2: Convert to fraction form
472,829.20/709,704.60 = 236,438.80/x - Step 3: Cross multiply
472,829.20x = 709,704.60 × 236,438.80 - Step 4: Simplify right side
472,829.20x = 167,801,703,978.48 - Step 5: Solve for x
x = 167,801,703,978.48/472,829.20 - Step 6: Final answer
x = 354,888.62
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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.