Finding the Fourth Proportional to 1,226,134.02, 1,692,299.12 and 811,940.75
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Solution
The fourth proportional to 1,226,134.02, 1,692,299.12 and 811,940.75 is: 1,120,633.29
Step by Step Solution
- Step 1: Write the proportion equation
1,226,134.02 : 1,692,299.12 = 811,940.75 : x - Step 2: Convert to fraction form
1,226,134.02/1,692,299.12 = 811,940.75/x - Step 3: Cross multiply
1,226,134.02x = 1,692,299.12 × 811,940.75 - Step 4: Simplify right side
1,226,134.02x = 1,374,046,604,195.94 - Step 5: Solve for x
x = 1,374,046,604,195.94/1,226,134.02 - Step 6: Final answer
x = 1,120,633.29
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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.