Finding the Fourth Proportional to 1,186,661.84, 1,637,601.21 and 642,797.63
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Solution
The fourth proportional to 1,186,661.84, 1,637,601.21 and 642,797.63 is: 887,064.99
Step by Step Solution
- Step 1: Write the proportion equation
1,186,661.84 : 1,637,601.21 = 642,797.63 : x - Step 2: Convert to fraction form
1,186,661.84/1,637,601.21 = 642,797.63/x - Step 3: Cross multiply
1,186,661.84x = 1,637,601.21 × 642,797.63 - Step 4: Simplify right side
1,186,661.84x = 1,052,646,176,673.13 - Step 5: Solve for x
x = 1,052,646,176,673.13/1,186,661.84 - Step 6: Final answer
x = 887,064.99
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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.