Finding the Fourth Proportional to 2,287,439.16, 3,156,331.50 and 1,320,415.80
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Solution
The fourth proportional to 2,287,439.16, 3,156,331.50 and 1,320,415.80 is: 1,821,980.69
Step by Step Solution
- Step 1: Write the proportion equation
2,287,439.16 : 3,156,331.50 = 1,320,415.80 : x - Step 2: Convert to fraction form
2,287,439.16/3,156,331.50 = 1,320,415.80/x - Step 3: Cross multiply
2,287,439.16x = 3,156,331.50 × 1,320,415.80 - Step 4: Simplify right side
2,287,439.16x = 4,167,669,982,637.70 - Step 5: Solve for x
x = 4,167,669,982,637.70/2,287,439.16 - Step 6: Final answer
x = 1,821,980.69
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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.