Finding the Fourth Proportional to 1,532,861.73, 2,115,247.99 and 920,650.72
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Solution
The fourth proportional to 1,532,861.73, 2,115,247.99 and 920,650.72 is: 1,270,437.21
Step by Step Solution
- Step 1: Write the proportion equation
1,532,861.73 : 2,115,247.99 = 920,650.72 : x - Step 2: Convert to fraction form
1,532,861.73/2,115,247.99 = 920,650.72/x - Step 3: Cross multiply
1,532,861.73x = 2,115,247.99 × 920,650.72 - Step 4: Simplify right side
1,532,861.73x = 1,947,404,584,972.05 - Step 5: Solve for x
x = 1,947,404,584,972.05/1,532,861.73 - Step 6: Final answer
x = 1,270,437.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.