Finding the Fourth Proportional to 1,282,789.51, 1,770,261.99 and 709,828.31
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Solution
The fourth proportional to 1,282,789.51, 1,770,261.99 and 709,828.31 is: 979,569.97
Step by Step Solution
- Step 1: Write the proportion equation
1,282,789.51 : 1,770,261.99 = 709,828.31 : x - Step 2: Convert to fraction form
1,282,789.51/1,770,261.99 = 709,828.31/x - Step 3: Cross multiply
1,282,789.51x = 1,770,261.99 × 709,828.31 - Step 4: Simplify right side
1,282,789.51x = 1,256,582,078,382.74 - Step 5: Solve for x
x = 1,256,582,078,382.74/1,282,789.51 - Step 6: Final answer
x = 979,569.97
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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.