Finding the Fourth Proportional to 2,724,887.40, 4,087,331.10 and 831,625.80
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Solution
The fourth proportional to 2,724,887.40, 4,087,331.10 and 831,625.80 is: 1,247,438.70
Step by Step Solution
- Step 1: Write the proportion equation
2,724,887.40 : 4,087,331.10 = 831,625.80 : x - Step 2: Convert to fraction form
2,724,887.40/4,087,331.10 = 831,625.80/x - Step 3: Cross multiply
2,724,887.40x = 4,087,331.10 × 831,625.80 - Step 4: Simplify right side
2,724,887.40x = 3,399,129,995,902.38 - Step 5: Solve for x
x = 3,399,129,995,902.38/2,724,887.40 - Step 6: Final answer
x = 1,247,438.70
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1.5x scale
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.