Finding the Fourth Proportional to 528,402.21, 728,745.31 and 367,641.31
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Solution
The fourth proportional to 528,402.21, 728,745.31 and 367,641.31 is: 507,032.09
Step by Step Solution
- Step 1: Write the proportion equation
528,402.21 : 728,745.31 = 367,641.31 : x - Step 2: Convert to fraction form
528,402.21/728,745.31 = 367,641.31/x - Step 3: Cross multiply
528,402.21x = 728,745.31 × 367,641.31 - Step 4: Simplify right side
528,402.21x = 267,916,876,311.26 - Step 5: Solve for x
x = 267,916,876,311.26/528,402.21 - Step 6: Final answer
x = 507,032.09
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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.