Finding the Fourth Proportional to 1,390,672.68, 2,086,943.76 and 492,110.70
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Solution
The fourth proportional to 1,390,672.68, 2,086,943.76 and 492,110.70 is: 738,496.82
Step by Step Solution
- Step 1: Write the proportion equation
1,390,672.68 : 2,086,943.76 = 492,110.70 : x - Step 2: Convert to fraction form
1,390,672.68/2,086,943.76 = 492,110.70/x - Step 3: Cross multiply
1,390,672.68x = 2,086,943.76 × 492,110.70 - Step 4: Simplify right side
1,390,672.68x = 1,027,007,354,594.23 - Step 5: Solve for x
x = 1,027,007,354,594.23/1,390,672.68 - Step 6: Final answer
x = 738,496.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.