Finding the Fourth Proportional to 426,244.49, 588,438.81 and 311,394.18
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Solution
The fourth proportional to 426,244.49, 588,438.81 and 311,394.18 is: 429,885.73
Step by Step Solution
- Step 1: Write the proportion equation
426,244.49 : 588,438.81 = 311,394.18 : x - Step 2: Convert to fraction form
426,244.49/588,438.81 = 311,394.18/x - Step 3: Cross multiply
426,244.49x = 588,438.81 × 311,394.18 - Step 4: Simplify right side
426,244.49x = 183,236,420,720.13 - Step 5: Solve for x
x = 183,236,420,720.13/426,244.49 - Step 6: Final answer
x = 429,885.73
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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.