Finding the Fourth Proportional to 528,157.26, 728,950.19 and 313,415.73
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Solution
The fourth proportional to 528,157.26, 728,950.19 and 313,415.73 is: 432,568.99
Step by Step Solution
- Step 1: Write the proportion equation
528,157.26 : 728,950.19 = 313,415.73 : x - Step 2: Convert to fraction form
528,157.26/728,950.19 = 313,415.73/x - Step 3: Cross multiply
528,157.26x = 728,950.19 × 313,415.73 - Step 4: Simplify right side
528,157.26x = 228,464,454,365.41 - Step 5: Solve for x
x = 228,464,454,365.41/528,157.26 - Step 6: Final answer
x = 432,568.99
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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.