Finding the Fourth Proportional to 1,549,535.28, 2,138,413.68 and 861,220.80
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Solution
The fourth proportional to 1,549,535.28, 2,138,413.68 and 861,220.80 is: 1,188,515.27
Step by Step Solution
- Step 1: Write the proportion equation
1,549,535.28 : 2,138,413.68 = 861,220.80 : x - Step 2: Convert to fraction form
1,549,535.28/2,138,413.68 = 861,220.80/x - Step 3: Cross multiply
1,549,535.28x = 2,138,413.68 × 861,220.80 - Step 4: Simplify right side
1,549,535.28x = 1,841,646,340,220.54 - Step 5: Solve for x
x = 1,841,646,340,220.54/1,549,535.28 - Step 6: Final answer
x = 1,188,515.27
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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.