Finding the Fourth Proportional to 656,846.64, 906,448.19 and 355,040.64
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Solution
The fourth proportional to 656,846.64, 906,448.19 and 355,040.64 is: 489,955.99
Step by Step Solution
- Step 1: Write the proportion equation
656,846.64 : 906,448.19 = 355,040.64 : x - Step 2: Convert to fraction form
656,846.64/906,448.19 = 355,040.64/x - Step 3: Cross multiply
656,846.64x = 906,448.19 × 355,040.64 - Step 4: Simplify right side
656,846.64x = 321,825,943,729.24 - Step 5: Solve for x
x = 321,825,943,729.24/656,846.64 - Step 6: Final answer
x = 489,955.99
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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.