Finding the Fourth Proportional to 1,530,563.62, 2,115,090.84 and 1,147,926.10
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Solution
The fourth proportional to 1,530,563.62, 2,115,090.84 and 1,147,926.10 is: 1,586,322.81
Step by Step Solution
- Step 1: Write the proportion equation
1,530,563.62 : 2,115,090.84 = 1,147,926.10 : x - Step 2: Convert to fraction form
1,530,563.62/2,115,090.84 = 1,147,926.10/x - Step 3: Cross multiply
1,530,563.62x = 2,115,090.84 × 1,147,926.10 - Step 4: Simplify right side
1,530,563.62x = 2,427,967,979,106.92 - Step 5: Solve for x
x = 2,427,967,979,106.92/1,530,563.62 - Step 6: Final answer
x = 1,586,322.81
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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.