Finding the Fourth Proportional to 986,766.28, 1,361,772.78 and 557,122.84
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Solution
The fourth proportional to 986,766.28, 1,361,772.78 and 557,122.84 is: 768,849.46
Step by Step Solution
- Step 1: Write the proportion equation
986,766.28 : 1,361,772.78 = 557,122.84 : x - Step 2: Convert to fraction form
986,766.28/1,361,772.78 = 557,122.84/x - Step 3: Cross multiply
986,766.28x = 1,361,772.78 × 557,122.84 - Step 4: Simplify right side
986,766.28x = 758,674,718,628.30 - Step 5: Solve for x
x = 758,674,718,628.30/986,766.28 - Step 6: Final answer
x = 768,849.46
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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.