Finding the Fourth Proportional to 3,151,386.40, 4,723,969.20 and 1,552,640.80
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Solution
The fourth proportional to 3,151,386.40, 4,723,969.20 and 1,552,640.80 is: 2,327,428.75
Step by Step Solution
- Step 1: Write the proportion equation
3,151,386.40 : 4,723,969.20 = 1,552,640.80 : x - Step 2: Convert to fraction form
3,151,386.40/4,723,969.20 = 1,552,640.80/x - Step 3: Cross multiply
3,151,386.40x = 4,723,969.20 × 1,552,640.80 - Step 4: Simplify right side
3,151,386.40x = 7,334,627,317,863.36 - Step 5: Solve for x
x = 7,334,627,317,863.36/3,151,386.40 - Step 6: Final answer
x = 2,327,428.75
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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.