Finding the Fourth Proportional to 1,209,122.64, 1,668,413.16 and 725,585.04
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Solution
The fourth proportional to 1,209,122.64, 1,668,413.16 and 725,585.04 is: 1,001,201.69
Step by Step Solution
- Step 1: Write the proportion equation
1,209,122.64 : 1,668,413.16 = 725,585.04 : x - Step 2: Convert to fraction form
1,209,122.64/1,668,413.16 = 725,585.04/x - Step 3: Cross multiply
1,209,122.64x = 1,668,413.16 × 725,585.04 - Step 4: Simplify right side
1,209,122.64x = 1,210,575,629,435.13 - Step 5: Solve for x
x = 1,210,575,629,435.13/1,209,122.64 - Step 6: Final answer
x = 1,001,201.69
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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.