Finding the Fourth Proportional to 831,751.80, 1,247,627.70 and 779,263.80
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Solution
The fourth proportional to 831,751.80, 1,247,627.70 and 779,263.80 is: 1,168,895.70
Step by Step Solution
- Step 1: Write the proportion equation
831,751.80 : 1,247,627.70 = 779,263.80 : x - Step 2: Convert to fraction form
831,751.80/1,247,627.70 = 779,263.80/x - Step 3: Cross multiply
831,751.80x = 1,247,627.70 × 779,263.80 - Step 4: Simplify right side
831,751.80x = 972,231,102,487.26 - Step 5: Solve for x
x = 972,231,102,487.26/831,751.80 - Step 6: Final answer
x = 1,168,895.70
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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.