Finding the Fourth Proportional to 1,107,641.99, 1,527,787.17 and 678,134.33
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Solution
The fourth proportional to 1,107,641.99, 1,527,787.17 and 678,134.33 is: 935,360.82
Step by Step Solution
- Step 1: Write the proportion equation
1,107,641.99 : 1,527,787.17 = 678,134.33 : x - Step 2: Convert to fraction form
1,107,641.99/1,527,787.17 = 678,134.33/x - Step 3: Cross multiply
1,107,641.99x = 1,527,787.17 × 678,134.33 - Step 4: Simplify right side
1,107,641.99x = 1,036,044,927,000.81 - Step 5: Solve for x
x = 1,036,044,927,000.81/1,107,641.99 - Step 6: Final answer
x = 935,360.82
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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.