Finding the Fourth Proportional to 479,011.40, 717,703.73 and 289,072.63
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Solution
The fourth proportional to 479,011.40, 717,703.73 and 289,072.63 is: 433,118.09
Step by Step Solution
- Step 1: Write the proportion equation
479,011.40 : 717,703.73 = 289,072.63 : x - Step 2: Convert to fraction form
479,011.40/717,703.73 = 289,072.63/x - Step 3: Cross multiply
479,011.40x = 717,703.73 × 289,072.63 - Step 4: Simplify right side
479,011.40x = 207,468,504,791.91 - Step 5: Solve for x
x = 207,468,504,791.91/479,011.40 - Step 6: Final answer
x = 433,118.09
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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.