Finding the Fourth Proportional to 1,609,121.80, 2,415,237.90 and 811,304.20
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Solution
The fourth proportional to 1,609,121.80, 2,415,237.90 and 811,304.20 is: 1,217,740.42
Step by Step Solution
- Step 1: Write the proportion equation
1,609,121.80 : 2,415,237.90 = 811,304.20 : x - Step 2: Convert to fraction form
1,609,121.80/2,415,237.90 = 811,304.20/x - Step 3: Cross multiply
1,609,121.80x = 2,415,237.90 × 811,304.20 - Step 4: Simplify right side
1,609,121.80x = 1,959,492,652,269.18 - Step 5: Solve for x
x = 1,959,492,652,269.18/1,609,121.80 - Step 6: Final answer
x = 1,217,740.42
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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.