Finding the Fourth Proportional to 878,494.53, 1,209,808.10 and 823,753.23
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Solution
The fourth proportional to 878,494.53, 1,209,808.10 and 823,753.23 is: 1,134,421.78
Step by Step Solution
- Step 1: Write the proportion equation
878,494.53 : 1,209,808.10 = 823,753.23 : x - Step 2: Convert to fraction form
878,494.53/1,209,808.10 = 823,753.23/x - Step 3: Cross multiply
878,494.53x = 1,209,808.10 × 823,753.23 - Step 4: Simplify right side
878,494.53x = 996,583,325,936.40 - Step 5: Solve for x
x = 996,583,325,936.40/878,494.53 - Step 6: Final answer
x = 1,134,421.78
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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.