Finding the Fourth Proportional to 1,284,787.09, 1,925,078.14 and 777,811.47
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Solution
The fourth proportional to 1,284,787.09, 1,925,078.14 and 777,811.47 is: 1,165,444.35
Step by Step Solution
- Step 1: Write the proportion equation
1,284,787.09 : 1,925,078.14 = 777,811.47 : x - Step 2: Convert to fraction form
1,284,787.09/1,925,078.14 = 777,811.47/x - Step 3: Cross multiply
1,284,787.09x = 1,925,078.14 × 777,811.47 - Step 4: Simplify right side
1,284,787.09x = 1,497,347,857,938.27 - Step 5: Solve for x
x = 1,497,347,857,938.27/1,284,787.09 - Step 6: Final answer
x = 1,165,444.35
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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.