Finding the Fourth Proportional to 1,407,971.36, 1,943,025.68 and 763,413.28
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Solution
The fourth proportional to 1,407,971.36, 1,943,025.68 and 763,413.28 is: 1,053,523.99
Step by Step Solution
- Step 1: Write the proportion equation
1,407,971.36 : 1,943,025.68 = 763,413.28 : x - Step 2: Convert to fraction form
1,407,971.36/1,943,025.68 = 763,413.28/x - Step 3: Cross multiply
1,407,971.36x = 1,943,025.68 × 763,413.28 - Step 4: Simplify right side
1,407,971.36x = 1,483,331,607,493.03 - Step 5: Solve for x
x = 1,483,331,607,493.03/1,407,971.36 - Step 6: Final answer
x = 1,053,523.99
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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.