Finding the Fourth Proportional to 1,106,929.96, 1,660,877.39 and 387,787.55
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Solution
The fourth proportional to 1,106,929.96, 1,660,877.39 and 387,787.55 is: 581,850.35
Step by Step Solution
- Step 1: Write the proportion equation
1,106,929.96 : 1,660,877.39 = 387,787.55 : x - Step 2: Convert to fraction form
1,106,929.96/1,660,877.39 = 387,787.55/x - Step 3: Cross multiply
1,106,929.96x = 1,660,877.39 × 387,787.55 - Step 4: Simplify right side
1,106,929.96x = 644,067,579,040.16 - Step 5: Solve for x
x = 644,067,579,040.16/1,106,929.96 - Step 6: Final answer
x = 581,850.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.