Finding the Fourth Proportional to 1,422,796.91, 1,963,474.97 and 778,203.32
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Solution
The fourth proportional to 1,422,796.91, 1,963,474.97 and 778,203.32 is: 1,073,928.91
Step by Step Solution
- Step 1: Write the proportion equation
1,422,796.91 : 1,963,474.97 = 778,203.32 : x - Step 2: Convert to fraction form
1,422,796.91/1,963,474.97 = 778,203.32/x - Step 3: Cross multiply
1,422,796.91x = 1,963,474.97 × 778,203.32 - Step 4: Simplify right side
1,422,796.91x = 1,527,982,726,682.51 - Step 5: Solve for x
x = 1,527,982,726,682.51/1,422,796.91 - Step 6: Final answer
x = 1,073,928.91
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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.