Finding the Fourth Proportional to 1,241,506.20, 1,861,821.90 and 442,813.80
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Solution
The fourth proportional to 1,241,506.20, 1,861,821.90 and 442,813.80 is: 664,064.69
Step by Step Solution
- Step 1: Write the proportion equation
1,241,506.20 : 1,861,821.90 = 442,813.80 : x - Step 2: Convert to fraction form
1,241,506.20/1,861,821.90 = 442,813.80/x - Step 3: Cross multiply
1,241,506.20x = 1,861,821.90 × 442,813.80 - Step 4: Simplify right side
1,241,506.20x = 824,440,430,462.22 - Step 5: Solve for x
x = 824,440,430,462.22/1,241,506.20 - Step 6: Final answer
x = 664,064.69
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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.