Finding the Fourth Proportional to 2,143,267.09, 2,957,698.19 and 1,176,413.83
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Solution
The fourth proportional to 2,143,267.09, 2,957,698.19 and 1,176,413.83 is: 1,623,445.38
Step by Step Solution
- Step 1: Write the proportion equation
2,143,267.09 : 2,957,698.19 = 1,176,413.83 : x - Step 2: Convert to fraction form
2,143,267.09/2,957,698.19 = 1,176,413.83/x - Step 3: Cross multiply
2,143,267.09x = 2,957,698.19 × 1,176,413.83 - Step 4: Simplify right side
2,143,267.09x = 3,479,477,051,228.76 - Step 5: Solve for x
x = 3,479,477,051,228.76/2,143,267.09 - Step 6: Final answer
x = 1,623,445.38
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1.5x scale
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.