Finding the Fourth Proportional to 781,202, 1,078,173.80 and 494,748.72
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Solution
The fourth proportional to 781,202, 1,078,173.80 and 494,748.72 is: 682,826.09
Step by Step Solution
- Step 1: Write the proportion equation
781,202 : 1,078,173.80 = 494,748.72 : x - Step 2: Convert to fraction form
781,202/1,078,173.80 = 494,748.72/x - Step 3: Cross multiply
781,202x = 1,078,173.80 × 494,748.72 - Step 4: Simplify right side
781,202x = 533,425,107,487.54 - Step 5: Solve for x
x = 533,425,107,487.54/781,202 - Step 6: Final answer
x = 682,826.09
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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.