Finding the Fourth Proportional to 2,927,832.68, 4,039,488.42 and 1,638,468.20
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Solution
The fourth proportional to 2,927,832.68, 4,039,488.42 and 1,638,468.20 is: 2,260,570.89
Step by Step Solution
- Step 1: Write the proportion equation
2,927,832.68 : 4,039,488.42 = 1,638,468.20 : x - Step 2: Convert to fraction form
2,927,832.68/4,039,488.42 = 1,638,468.20/x - Step 3: Cross multiply
2,927,832.68x = 4,039,488.42 × 1,638,468.20 - Step 4: Simplify right side
2,927,832.68x = 6,618,573,320,438.24 - Step 5: Solve for x
x = 6,618,573,320,438.24/2,927,832.68 - Step 6: Final answer
x = 2,260,570.89
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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.