Finding the Fourth Proportional to 2,790,927.20, 4,186,390.80 and 769,167.20
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Solution
The fourth proportional to 2,790,927.20, 4,186,390.80 and 769,167.20 is: 1,153,750.80
Step by Step Solution
- Step 1: Write the proportion equation
2,790,927.20 : 4,186,390.80 = 769,167.20 : x - Step 2: Convert to fraction form
2,790,927.20/4,186,390.80 = 769,167.20/x - Step 3: Cross multiply
2,790,927.20x = 4,186,390.80 × 769,167.20 - Step 4: Simplify right side
2,790,927.20x = 3,220,034,489,741.76 - Step 5: Solve for x
x = 3,220,034,489,741.76/2,790,927.20 - Step 6: Final answer
x = 1,153,750.80
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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.