Finding the Fourth Proportional to 1,440,694.33, 1,988,186.69 and 787,360.81
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Solution
The fourth proportional to 1,440,694.33, 1,988,186.69 and 787,360.81 is: 1,086,573.50
Step by Step Solution
- Step 1: Write the proportion equation
1,440,694.33 : 1,988,186.69 = 787,360.81 : x - Step 2: Convert to fraction form
1,440,694.33/1,988,186.69 = 787,360.81/x - Step 3: Cross multiply
1,440,694.33x = 1,988,186.69 × 787,360.81 - Step 4: Simplify right side
1,440,694.33x = 1,565,420,286,772.73 - Step 5: Solve for x
x = 1,565,420,286,772.73/1,440,694.33 - Step 6: Final answer
x = 1,086,573.50
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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.