Finding the Fourth Proportional to 411,767.68, 568,158.64 and 258,717.20
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Solution
The fourth proportional to 411,767.68, 568,158.64 and 258,717.20 is: 356,978.99
Step by Step Solution
- Step 1: Write the proportion equation
411,767.68 : 568,158.64 = 258,717.20 : x - Step 2: Convert to fraction form
411,767.68/568,158.64 = 258,717.20/x - Step 3: Cross multiply
411,767.68x = 568,158.64 × 258,717.20 - Step 4: Simplify right side
411,767.68x = 146,992,412,496.61 - Step 5: Solve for x
x = 146,992,412,496.61/411,767.68 - Step 6: Final answer
x = 356,978.99
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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.