Finding the Fourth Proportional to 1,382,278.47, 1,907,553.19 and 770,470.08
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Solution
The fourth proportional to 1,382,278.47, 1,907,553.19 and 770,470.08 is: 1,063,253.67
Step by Step Solution
- Step 1: Write the proportion equation
1,382,278.47 : 1,907,553.19 = 770,470.08 : x - Step 2: Convert to fraction form
1,382,278.47/1,907,553.19 = 770,470.08/x - Step 3: Cross multiply
1,382,278.47x = 1,907,553.19 × 770,470.08 - Step 4: Simplify right side
1,382,278.47x = 1,469,712,651,268.69 - Step 5: Solve for x
x = 1,469,712,651,268.69/1,382,278.47 - Step 6: Final answer
x = 1,063,253.67
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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.