Finding the Fourth Proportional to 872,257.44, 1,203,538.86 and 509,611.26
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Solution
The fourth proportional to 872,257.44, 1,203,538.86 and 509,611.26 is: 703,160.47
Step by Step Solution
- Step 1: Write the proportion equation
872,257.44 : 1,203,538.86 = 509,611.26 : x - Step 2: Convert to fraction form
872,257.44/1,203,538.86 = 509,611.26/x - Step 3: Cross multiply
872,257.44x = 1,203,538.86 × 509,611.26 - Step 4: Simplify right side
872,257.44x = 613,336,954,903.56 - Step 5: Solve for x
x = 613,336,954,903.56/872,257.44 - Step 6: Final answer
x = 703,160.47
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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.