Finding the Fourth Proportional to 528,614.64, 728,936.84 and 313,713.19
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Solution
The fourth proportional to 528,614.64, 728,936.84 and 313,713.19 is: 432,596.98
Step by Step Solution
- Step 1: Write the proportion equation
528,614.64 : 728,936.84 = 313,713.19 : x - Step 2: Convert to fraction form
528,614.64/728,936.84 = 313,713.19/x - Step 3: Cross multiply
528,614.64x = 728,936.84 × 313,713.19 - Step 4: Simplify right side
528,614.64x = 228,677,100,952.41 - Step 5: Solve for x
x = 228,677,100,952.41/528,614.64 - Step 6: Final answer
x = 432,596.98
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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.