Finding the Fourth Proportional to 678,819.84, 936,755.04 and 377,014.08
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Solution
The fourth proportional to 678,819.84, 936,755.04 and 377,014.08 is: 520,270.36
Step by Step Solution
- Step 1: Write the proportion equation
678,819.84 : 936,755.04 = 377,014.08 : x - Step 2: Convert to fraction form
678,819.84/936,755.04 = 377,014.08/x - Step 3: Cross multiply
678,819.84x = 936,755.04 × 377,014.08 - Step 4: Simplify right side
678,819.84x = 353,169,839,590.96 - Step 5: Solve for x
x = 353,169,839,590.96/678,819.84 - Step 6: Final answer
x = 520,270.36
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1.5x scale
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.