Finding the Fourth Proportional to 1,016,273.94, 1,398,938.10 and 878,390.08
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Solution
The fourth proportional to 1,016,273.94, 1,398,938.10 and 878,390.08 is: 1,209,135.94
Step by Step Solution
- Step 1: Write the proportion equation
1,016,273.94 : 1,398,938.10 = 878,390.08 : x - Step 2: Convert to fraction form
1,016,273.94/1,398,938.10 = 878,390.08/x - Step 3: Cross multiply
1,016,273.94x = 1,398,938.10 × 878,390.08 - Step 4: Simplify right side
1,016,273.94x = 1,228,813,349,574.05 - Step 5: Solve for x
x = 1,228,813,349,574.05/1,016,273.94 - Step 6: Final answer
x = 1,209,135.94
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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.