Finding the Fourth Proportional to 415,678.57, 573,587.67 and 234,379.70
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Solution
The fourth proportional to 415,678.57, 573,587.67 and 234,379.70 is: 323,416.50
Step by Step Solution
- Step 1: Write the proportion equation
415,678.57 : 573,587.67 = 234,379.70 : x - Step 2: Convert to fraction form
415,678.57/573,587.67 = 234,379.70/x - Step 3: Cross multiply
415,678.57x = 573,587.67 × 234,379.70 - Step 4: Simplify right side
415,678.57x = 134,437,306,018.30 - Step 5: Solve for x
x = 134,437,306,018.30/415,678.57 - Step 6: Final answer
x = 323,416.50
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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.