Finding the Fourth Proportional to 528,041.26, 728,822.97 and 313,305.94
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Solution
The fourth proportional to 528,041.26, 728,822.97 and 313,305.94 is: 432,436.98
Step by Step Solution
- Step 1: Write the proportion equation
528,041.26 : 728,822.97 = 313,305.94 : x - Step 2: Convert to fraction form
528,041.26/728,822.97 = 313,305.94/x - Step 3: Cross multiply
528,041.26x = 728,822.97 × 313,305.94 - Step 4: Simplify right side
528,041.26x = 228,344,565,709.44 - Step 5: Solve for x
x = 228,344,565,709.44/528,041.26 - Step 6: Final answer
x = 432,436.98
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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.