Finding the Fourth Proportional to 1,440,765.88, 1,988,054.98 and 828,685.96
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Solution
The fourth proportional to 1,440,765.88, 1,988,054.98 and 828,685.96 is: 1,143,470.48
Step by Step Solution
- Step 1: Write the proportion equation
1,440,765.88 : 1,988,054.98 = 828,685.96 : x - Step 2: Convert to fraction form
1,440,765.88/1,988,054.98 = 828,685.96/x - Step 3: Cross multiply
1,440,765.88x = 1,988,054.98 × 828,685.96 - Step 4: Simplify right side
1,440,765.88x = 1,647,473,249,634.08 - Step 5: Solve for x
x = 1,647,473,249,634.08/1,440,765.88 - Step 6: Final answer
x = 1,143,470.48
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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.