Finding the Fourth Proportional to 512,449.18, 707,266.40 and 297,713.80
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Solution
The fourth proportional to 512,449.18, 707,266.40 and 297,713.80 is: 410,895.32
Step by Step Solution
- Step 1: Write the proportion equation
512,449.18 : 707,266.40 = 297,713.80 : x - Step 2: Convert to fraction form
512,449.18/707,266.40 = 297,713.80/x - Step 3: Cross multiply
512,449.18x = 707,266.40 × 297,713.80 - Step 4: Simplify right side
512,449.18x = 210,562,971,243.65 - Step 5: Solve for x
x = 210,562,971,243.65/512,449.18 - Step 6: Final answer
x = 410,895.32
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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.