Finding the Fourth Proportional to 1,761,031.20, 2,641,546.80 and 919,387.20
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Solution
The fourth proportional to 1,761,031.20, 2,641,546.80 and 919,387.20 is: 1,379,080.80
Step by Step Solution
- Step 1: Write the proportion equation
1,761,031.20 : 2,641,546.80 = 919,387.20 : x - Step 2: Convert to fraction form
1,761,031.20/2,641,546.80 = 919,387.20/x - Step 3: Cross multiply
1,761,031.20x = 2,641,546.80 × 919,387.20 - Step 4: Simplify right side
1,761,031.20x = 2,428,604,316,120.96 - Step 5: Solve for x
x = 2,428,604,316,120.96/1,761,031.20 - Step 6: Final answer
x = 1,379,080.80
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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.