Finding the Fourth Proportional to 3,121,994.91, 4,681,995.66 and 991,580.70
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Solution
The fourth proportional to 3,121,994.91, 4,681,995.66 and 991,580.70 is: 1,487,054.49
Step by Step Solution
- Step 1: Write the proportion equation
3,121,994.91 : 4,681,995.66 = 991,580.70 : x - Step 2: Convert to fraction form
3,121,994.91/4,681,995.66 = 991,580.70/x - Step 3: Cross multiply
3,121,994.91x = 4,681,995.66 × 991,580.70 - Step 4: Simplify right side
3,121,994.91x = 4,642,576,533,939.76 - Step 5: Solve for x
x = 4,642,576,533,939.76/3,121,994.91 - Step 6: Final answer
x = 1,487,054.49
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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.