Finding the Fourth Proportional to 1,143,413.40, 1,578,263.84 and 735,515.26
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Solution
The fourth proportional to 1,143,413.40, 1,578,263.84 and 735,515.26 is: 1,015,238.35
Step by Step Solution
- Step 1: Write the proportion equation
1,143,413.40 : 1,578,263.84 = 735,515.26 : x - Step 2: Convert to fraction form
1,143,413.40/1,578,263.84 = 735,515.26/x - Step 3: Cross multiply
1,143,413.40x = 1,578,263.84 × 735,515.26 - Step 4: Simplify right side
1,143,413.40x = 1,160,837,138,626.20 - Step 5: Solve for x
x = 1,160,837,138,626.20/1,143,413.40 - Step 6: Final answer
x = 1,015,238.35
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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.