Finding the Fourth Proportional to 920,889.88, 1,270,778.76 and 507,413.84
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Solution
The fourth proportional to 920,889.88, 1,270,778.76 and 507,413.84 is: 700,203.95
Step by Step Solution
- Step 1: Write the proportion equation
920,889.88 : 1,270,778.76 = 507,413.84 : x - Step 2: Convert to fraction form
920,889.88/1,270,778.76 = 507,413.84/x - Step 3: Cross multiply
920,889.88x = 1,270,778.76 × 507,413.84 - Step 4: Simplify right side
920,889.88x = 644,810,730,402.04 - Step 5: Solve for x
x = 644,810,730,402.04/920,889.88 - Step 6: Final answer
x = 700,203.95
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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.