Finding the Fourth Proportional to 1,349,709.81, 1,862,621.67 and 805,893.12
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Solution
The fourth proportional to 1,349,709.81, 1,862,621.67 and 805,893.12 is: 1,112,145.72
Step by Step Solution
- Step 1: Write the proportion equation
1,349,709.81 : 1,862,621.67 = 805,893.12 : x - Step 2: Convert to fraction form
1,349,709.81/1,862,621.67 = 805,893.12/x - Step 3: Cross multiply
1,349,709.81x = 1,862,621.67 × 805,893.12 - Step 4: Simplify right side
1,349,709.81x = 1,501,073,989,015.91 - Step 5: Solve for x
x = 1,501,073,989,015.91/1,349,709.81 - Step 6: Final answer
x = 1,112,145.72
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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.