Finding the Fourth Proportional to 547,502.94, 755,479.40 and 305,754.70
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Solution
The fourth proportional to 547,502.94, 755,479.40 and 305,754.70 is: 421,899.79
Step by Step Solution
- Step 1: Write the proportion equation
547,502.94 : 755,479.40 = 305,754.70 : x - Step 2: Convert to fraction form
547,502.94/755,479.40 = 305,754.70/x - Step 3: Cross multiply
547,502.94x = 755,479.40 × 305,754.70 - Step 4: Simplify right side
547,502.94x = 230,991,377,303.18 - Step 5: Solve for x
x = 230,991,377,303.18/547,502.94 - Step 6: Final answer
x = 421,899.79
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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.