Finding the Fourth Proportional to 838,642.25, 1,157,375.00 and 631,539.88
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Solution
The fourth proportional to 838,642.25, 1,157,375.00 and 631,539.88 is: 871,561.70
Step by Step Solution
- Step 1: Write the proportion equation
838,642.25 : 1,157,375.00 = 631,539.88 : x - Step 2: Convert to fraction form
838,642.25/1,157,375.00 = 631,539.88/x - Step 3: Cross multiply
838,642.25x = 1,157,375.00 × 631,539.88 - Step 4: Simplify right side
838,642.25x = 730,928,467,300.41 - Step 5: Solve for x
x = 730,928,467,300.41/838,642.25 - Step 6: Final answer
x = 871,561.70
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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.