Finding the Fourth Proportional to 1,455,639.66, 2,008,756.06 and 811,045.91
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Solution
The fourth proportional to 1,455,639.66, 2,008,756.06 and 811,045.91 is: 1,119,228.50
Step by Step Solution
- Step 1: Write the proportion equation
1,455,639.66 : 2,008,756.06 = 811,045.91 : x - Step 2: Convert to fraction form
1,455,639.66/2,008,756.06 = 811,045.91/x - Step 3: Cross multiply
1,455,639.66x = 2,008,756.06 × 811,045.91 - Step 4: Simplify right side
1,455,639.66x = 1,629,193,389,644.99 - Step 5: Solve for x
x = 1,629,193,389,644.99/1,455,639.66 - Step 6: Final answer
x = 1,119,228.50
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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.