Finding the Fourth Proportional to 3,137,947.74, 4,330,185.75 and 1,761,163.74
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Solution
The fourth proportional to 3,137,947.74, 4,330,185.75 and 1,761,163.74 is: 2,430,303.74
Step by Step Solution
- Step 1: Write the proportion equation
3,137,947.74 : 4,330,185.75 = 1,761,163.74 : x - Step 2: Convert to fraction form
3,137,947.74/4,330,185.75 = 1,761,163.74/x - Step 3: Cross multiply
3,137,947.74x = 4,330,185.75 × 1,761,163.74 - Step 4: Simplify right side
3,137,947.74x = 7,626,166,130,364.71 - Step 5: Solve for x
x = 7,626,166,130,364.71/3,137,947.74 - Step 6: Final answer
x = 2,430,303.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.