Finding the Fourth Proportional to 1,431,852.12, 1,975,963.37 and 787,313.84
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Solution
The fourth proportional to 1,431,852.12, 1,975,963.37 and 787,313.84 is: 1,086,497.18
Step by Step Solution
- Step 1: Write the proportion equation
1,431,852.12 : 1,975,963.37 = 787,313.84 : x - Step 2: Convert to fraction form
1,431,852.12/1,975,963.37 = 787,313.84/x - Step 3: Cross multiply
1,431,852.12x = 1,975,963.37 × 787,313.84 - Step 4: Simplify right side
1,431,852.12x = 1,555,703,294,717.65 - Step 5: Solve for x
x = 1,555,703,294,717.65/1,431,852.12 - Step 6: Final answer
x = 1,086,497.18
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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.