Finding the Fourth Proportional to 572,745.08, 790,365.96 and 318,112.40
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Solution
The fourth proportional to 572,745.08, 790,365.96 and 318,112.40 is: 438,982.75
Step by Step Solution
- Step 1: Write the proportion equation
572,745.08 : 790,365.96 = 318,112.40 : x - Step 2: Convert to fraction form
572,745.08/790,365.96 = 318,112.40/x - Step 3: Cross multiply
572,745.08x = 790,365.96 × 318,112.40 - Step 4: Simplify right side
572,745.08x = 251,425,212,413.90 - Step 5: Solve for x
x = 251,425,212,413.90/572,745.08 - Step 6: Final answer
x = 438,982.75
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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.