Finding the Fourth Proportional to 676,991.57, 934,344.06 and 418,951.62
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Solution
The fourth proportional to 676,991.57, 934,344.06 and 418,951.62 is: 578,212.45
Step by Step Solution
- Step 1: Write the proportion equation
676,991.57 : 934,344.06 = 418,951.62 : x - Step 2: Convert to fraction form
676,991.57/934,344.06 = 418,951.62/x - Step 3: Cross multiply
676,991.57x = 934,344.06 × 418,951.62 - Step 4: Simplify right side
676,991.57x = 391,444,955,732.07 - Step 5: Solve for x
x = 391,444,955,732.07/676,991.57 - Step 6: Final answer
x = 578,212.45
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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.