Finding the Fourth Proportional to 1,232,382.12, 1,700,655.99 and 688,521.99
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Solution
The fourth proportional to 1,232,382.12, 1,700,655.99 and 688,521.99 is: 950,142.84
Step by Step Solution
- Step 1: Write the proportion equation
1,232,382.12 : 1,700,655.99 = 688,521.99 : x - Step 2: Convert to fraction form
1,232,382.12/1,700,655.99 = 688,521.99/x - Step 3: Cross multiply
1,232,382.12x = 1,700,655.99 × 688,521.99 - Step 4: Simplify right side
1,232,382.12x = 1,170,939,046,540.22 - Step 5: Solve for x
x = 1,170,939,046,540.22/1,232,382.12 - Step 6: Final answer
x = 950,142.84
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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.