Finding the Fourth Proportional to 2,075,685.92, 2,864,381.58 and 1,216,818.20
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Solution
The fourth proportional to 2,075,685.92, 2,864,381.58 and 1,216,818.20 is: 1,679,171.02
Step by Step Solution
- Step 1: Write the proportion equation
2,075,685.92 : 2,864,381.58 = 1,216,818.20 : x - Step 2: Convert to fraction form
2,075,685.92/2,864,381.58 = 1,216,818.20/x - Step 3: Cross multiply
2,075,685.92x = 2,864,381.58 × 1,216,818.20 - Step 4: Simplify right side
2,075,685.92x = 3,485,431,638,288.76 - Step 5: Solve for x
x = 3,485,431,638,288.76/2,075,685.92 - Step 6: Final answer
x = 1,679,171.02
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1.5x scale
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.