Finding the Fourth Proportional to 647,839.19, 893,819.94 and 375,812.84
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Solution
The fourth proportional to 647,839.19, 893,819.94 and 375,812.84 is: 518,506.78
Step by Step Solution
- Step 1: Write the proportion equation
647,839.19 : 893,819.94 = 375,812.84 : x - Step 2: Convert to fraction form
647,839.19/893,819.94 = 375,812.84/x - Step 3: Cross multiply
647,839.19x = 893,819.94 × 375,812.84 - Step 4: Simplify right side
647,839.19x = 335,909,010,100.03 - Step 5: Solve for x
x = 335,909,010,100.03/647,839.19 - Step 6: Final answer
x = 518,506.78
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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.