Finding the Fourth Proportional to 831,203.80, 1,246,805.70 and 726,227.80
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Solution
The fourth proportional to 831,203.80, 1,246,805.70 and 726,227.80 is: 1,089,341.70
Step by Step Solution
- Step 1: Write the proportion equation
831,203.80 : 1,246,805.70 = 726,227.80 : x - Step 2: Convert to fraction form
831,203.80/1,246,805.70 = 726,227.80/x - Step 3: Cross multiply
831,203.80x = 1,246,805.70 × 726,227.80 - Step 4: Simplify right side
831,203.80x = 905,464,960,538.46 - Step 5: Solve for x
x = 905,464,960,538.46/831,203.80 - Step 6: Final answer
x = 1,089,341.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.