Finding the Fourth Proportional to 3,171,258.56, 4,376,339.62 and 1,720,953.99
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Solution
The fourth proportional to 3,171,258.56, 4,376,339.62 and 1,720,953.99 is: 2,374,918.03
Step by Step Solution
- Step 1: Write the proportion equation
3,171,258.56 : 4,376,339.62 = 1,720,953.99 : x - Step 2: Convert to fraction form
3,171,258.56/4,376,339.62 = 1,720,953.99/x - Step 3: Cross multiply
3,171,258.56x = 4,376,339.62 × 1,720,953.99 - Step 4: Simplify right side
3,171,258.56x = 7,531,479,126,331.70 - Step 5: Solve for x
x = 7,531,479,126,331.70/3,171,258.56 - Step 6: Final answer
x = 2,374,918.03
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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.