Finding the Fourth Proportional to 1,122,589.12, 1,683,115.09 and 402,914.85
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Solution
The fourth proportional to 1,122,589.12, 1,683,115.09 and 402,914.85 is: 604,096.42
Step by Step Solution
- Step 1: Write the proportion equation
1,122,589.12 : 1,683,115.09 = 402,914.85 : x - Step 2: Convert to fraction form
1,122,589.12/1,683,115.09 = 402,914.85/x - Step 3: Cross multiply
1,122,589.12x = 1,683,115.09 × 402,914.85 - Step 4: Simplify right side
1,122,589.12x = 678,152,063,012.80 - Step 5: Solve for x
x = 678,152,063,012.80/1,122,589.12 - Step 6: Final answer
x = 604,096.42
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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.