Finding the Fourth Proportional to 1,643,579.33, 2,268,095.85 and 918,432.99
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Solution
The fourth proportional to 1,643,579.33, 2,268,095.85 and 918,432.99 is: 1,267,413.15
Step by Step Solution
- Step 1: Write the proportion equation
1,643,579.33 : 2,268,095.85 = 918,432.99 : x - Step 2: Convert to fraction form
1,643,579.33/2,268,095.85 = 918,432.99/x - Step 3: Cross multiply
1,643,579.33x = 2,268,095.85 × 918,432.99 - Step 4: Simplify right side
1,643,579.33x = 2,083,094,053,122.09 - Step 5: Solve for x
x = 2,083,094,053,122.09/1,643,579.33 - Step 6: Final answer
x = 1,267,413.15
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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.