Finding the Fourth Proportional to 1,283,906.79, 1,923,021.54 and 878,137.29
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Solution
The fourth proportional to 1,283,906.79, 1,923,021.54 and 878,137.29 is: 1,315,264.42
Step by Step Solution
- Step 1: Write the proportion equation
1,283,906.79 : 1,923,021.54 = 878,137.29 : x - Step 2: Convert to fraction form
1,283,906.79/1,923,021.54 = 878,137.29/x - Step 3: Cross multiply
1,283,906.79x = 1,923,021.54 × 878,137.29 - Step 4: Simplify right side
1,283,906.79x = 1,688,676,920,454.21 - Step 5: Solve for x
x = 1,688,676,920,454.21/1,283,906.79 - Step 6: Final answer
x = 1,315,264.42
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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.