Finding the Fourth Proportional to 819,542.21, 1,226,995.11 and 434,413.53
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Solution
The fourth proportional to 819,542.21, 1,226,995.11 and 434,413.53 is: 650,391.49
Step by Step Solution
- Step 1: Write the proportion equation
819,542.21 : 1,226,995.11 = 434,413.53 : x - Step 2: Convert to fraction form
819,542.21/1,226,995.11 = 434,413.53/x - Step 3: Cross multiply
819,542.21x = 1,226,995.11 × 434,413.53 - Step 4: Simplify right side
819,542.21x = 533,023,277,027.84 - Step 5: Solve for x
x = 533,023,277,027.84/819,542.21 - Step 6: Final answer
x = 650,391.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.