Finding the Fourth Proportional to 3,430,245.40, 5,141,681.70 and 1,299,506.20
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Solution
The fourth proportional to 3,430,245.40, 5,141,681.70 and 1,299,506.20 is: 1,947,862.75
Step by Step Solution
- Step 1: Write the proportion equation
3,430,245.40 : 5,141,681.70 = 1,299,506.20 : x - Step 2: Convert to fraction form
3,430,245.40/5,141,681.70 = 1,299,506.20/x - Step 3: Cross multiply
3,430,245.40x = 5,141,681.70 × 1,299,506.20 - Step 4: Simplify right side
3,430,245.40x = 6,681,647,247,576.54 - Step 5: Solve for x
x = 6,681,647,247,576.54/3,430,245.40 - Step 6: Final answer
x = 1,947,862.75
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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.