Finding the Fourth Proportional to 679,426.88, 1,019,297.64 and 199,661.99
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Solution
The fourth proportional to 679,426.88, 1,019,297.64 and 199,661.99 is: 299,539.22
Step by Step Solution
- Step 1: Write the proportion equation
679,426.88 : 1,019,297.64 = 199,661.99 : x - Step 2: Convert to fraction form
679,426.88/1,019,297.64 = 199,661.99/x - Step 3: Cross multiply
679,426.88x = 1,019,297.64 × 199,661.99 - Step 4: Simplify right side
679,426.88x = 203,514,995,204.70 - Step 5: Solve for x
x = 203,514,995,204.70/679,426.88 - Step 6: Final answer
x = 299,539.22
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.