Finding the Fourth Proportional to 3,171,507.50, 4,376,682.60 and 1,721,202.60
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Solution
The fourth proportional to 3,171,507.50, 4,376,682.60 and 1,721,202.60 is: 2,375,260.81
Step by Step Solution
- Step 1: Write the proportion equation
3,171,507.50 : 4,376,682.60 = 1,721,202.60 : x - Step 2: Convert to fraction form
3,171,507.50/4,376,682.60 = 1,721,202.60/x - Step 3: Cross multiply
3,171,507.50x = 4,376,682.60 × 1,721,202.60 - Step 4: Simplify right side
3,171,507.50x = 7,533,157,470,494.76 - Step 5: Solve for x
x = 7,533,157,470,494.76/3,171,507.50 - Step 6: Final answer
x = 2,375,260.81
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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.